Tamil Nadu Combined Development Regulation and Building Rules for Municipal Corporations, Municipalities, Town and Village Panchayats, 2018
1. Short title, extent and commencement
(1) These rules may be called the Tamil Nadu Combined Development Regulation and Building Rules, 2018 and apply to Greater Chennai Corporation, all Municipal Corporations, Municipalities, Town Panchayats and Village Panchayats and to hill areas notified by Government in the entire State of Tamil Nadu from time to time.
(2) These rules shall apply to all development and building operations as defined in the Town and Country Planning Act, 1971.
(3) All rules enacted under the respective Local Bodies Acts shall stand repealed are by these rules.
(4) All existing rules, regulations, bye-laws, orders, that are in conflict, and inconsistent with these rules shall stand modified to the extent of the provisions of these rules.
(5) They shall come into force from the date of publication in the Tamil Nadu Government Gazette.
2. Definitions In these rules, unless there is anything repugnant in the subject or context,
(1) Access means way to a plot or a building.
(2) Accessory Use means any use of the premises subordinate to the principal use and customarily incidental to the principal use.
(3) Addition and/or Alteration”- A change from one occupancy to another, or a structural change including an addition to the area or change in height or the removal of part of building, or any change to the structure, such as the construction or removal or cutting into of any wall or part of a wall, partition, column, beam, joist, floor including a mezzanine floor or other support, or a change to or closing of any required means of access ingress or egress or a change to fixtures or equipment" as provided in these Rules.
(4) Advertising Sign- Any surface or structure with characters, letters or illustrations applied thereto and displayed in any manner whatsoever outdoors for the purpose of advertising or giving information or to attract the public to any place, person, public performance, article, or merchandise, and which surface or structure is attached to, forms part of, or is connected with any building, or is fixed to a tree or to the ground or to any pole, screen, fence or hoarding or displayed in space, or in or over any water body included in the jurisdiction of the Competent Authority.
(5) Air-conditioning- The process of treating air so as to control simultaneously its temperature, humidity, purity, distribution and air movement and pressure to meet the requirements of the conditioned space.
(6) Amenities shall have the same meaning as defined in Tamil Nadu Town and Country Planning Act, 1971.
(7) Application means an application made in such form as may be prescribed by the Authority from time to time.
(8) Approved - As approved/sanctioned by the Authority under these Rules.
(9) Area In relation to a building means the superficies of a horizontal section thereof made at the plinth level inclusive of the external walls and of such portions of the party walls as belong to the building.
(10) Assembly Building means any building or part of a building, where 50 persons or more congregate or gather for amusement, recreation, social, religious, patriotic, civil, travel or other purposes and shall include theatres, motion picture houses, assembly halls, auditoria, exhibition halls, museums, skating rinks, large gymnasiums, places of worship, dance halls, club rooms, passenger stations, stadia and terminals of air, surface and marine, public transportation services.
(11) Auxiliary means electrically operated or fuel fired boilers or systems to heat water coming out from solar water heating system to meet continuous requirement of hot water;
(12) Balcony A horizontal projection, cantilevered or otherwise including a parapet" handrail, balustrade, to serve as a passage or sit out place.
(13) Basement or Cellar – The lower storey or storeys of a building below or partly below ground level with majority of its headroom below ground level.
(14) Building Any structure for whatsoever purpose and of whatsoever materials constructed and every part thereof whether used as human habitation or not and includes foundation, plinth, walls, floors, roofs, chimneys, plumbing and building services, fixed platforms, verandah, balcone, cornice or projection, part of a building or anything affixed thereto or any wall enclosing or intended to enclose any land or space and signs and outdoor display structures. Tents/shamianahs/pandals, partaulin shelters, etc. erected for temporary and ceremonial occations shall not be considered as building.
(15) Building Line shall have the same meaning as defined in the Tamil Nadu Town and Country Planning Act, 1971.
(16) Carpet Area The covered area of the usable rooms of a dwelling unit/at any floor (excluding the area of the walls).
(17) Canopy or portico or porch-means a cantilever projection at lintel level or ground floor roof level over an entrance of a building and includes cantilever projection anywhere between lintel and roof level.
(18) Chimney - An upright shaft containing one or more flues provided for the conveyance to the outer air of any product of combustion resulting from the operation of heat production appliance or equipment employing solid, liquid or gaseous or any other fuel.
(19) Competent Authority is an Authority defined in Rule 5(1) of these rules.
(20) Construction - Any erection of a structure or a building, including any addition or extension thereto either vertically or horizontally, but does not include, any reconstruction, repair and renovation of an existing structure or building, or, construction, maintenance and cleansing of drains and drainage works and of public latrines, urinals and similar conveniences, or, the construction and maintenance of works meant for providing supply of water for public, or, the construction or maintenance, extension, management for supply and distribution of electricity to the public; or provision for similar facilities for publicity.
(21) Conversion of Building Occupied - The change from one occupancy to other occupancy or any change in building structure or part thereof resulting in a change of space and use requiring additional occupancy certificate.
(22) Conversion of Land Use: The change from one category of land use to another category of land use in the Master Plan and Detailed Development Plan.
(23) Courtyard- A space permanently open to sky, enclosed fully or partially by buildings and may be at ground level or any other level within or adjacent to a building.
(24) Covered Area – Ground area covered by the building above the plinth level and includes parts of the building projecting out in other storey, including basement floor levels.
(25) Corridor means a common passage or circulation space within a building.
(26) Continuous building means buildings constructed without any side set back including row type housing.
(27) Cyclone Prone Areas mean the areas close to the coast (specified in the wind velocity map given in I.S. 875), where the cyclonic wind velocities exceed 39 metres per second and prone to cyclonic storms.
(28) Damp Proof Course means a course consisting of some appropriate water proofing material provided to prevent penetration of dampness or moisture.
(29) Dead Load means the weight of all permanent stationary construction becoming part of a structure;
(30) Development shall have the same meaning as defined in Tamil Nadu Town and Country Planning Act, 1971
(31) Deemed Approval means a clearance deemed to have given by the Competent Authority on the expiry of time limit for providing such clearance in the absence of sufficient and reasonable cause for not clearing the application within the time limit.
(32) Drain shall have the same meaning as defined in Tamil Nadu Town and Country Planning Act, 1971
(33) Drainage system - A system or a line of pipes, with their fittings and accessories, such as manholes, inspection chambers, traps, gullies, floor traps used for drainage of building or yards appurtenant to the buildings within the same cartilage; and includes an open channel for conveying surface water or a system for the removal of any waste water.
(34) Dwelling Unit – An independent housing unit with separate facilities for living, cooking and sanitary requirements, and may be a part of a building.
(35) Earthquake Prone Areas mean the areas (as specified in the map given IS: 1893) under seismic zones III, IV & V, which are likely to have moderate to high damage risk due to earthquake.
(36) Encroachment- means an act to enter into the possession or rights either of permanent or temporary nature on a land or built up property of local body or state/ central Government.
(37) Exit - A passage channel or means of egress from the building, its storey or floor to a street or, other open space of safety; whether horizontal, outside and vertical exits meaning as under:-
i) Horizontal exit means an exit, which is a protected opening through or around a fire well or bridge connecting two or more buildings.
ii) Outside exit mean an exit from building to a public way to an open area leading to a public way or to an enclosed a fire resistant passage leading to a public way.
iii) Vertical exit means an exit used for ascending or descending between two or more levels including stairway, fire towers, ramps and fire escapes.
(38) External Wall means an outer wall or vertical enclosure of any building;
(39) Farm House - means a building constructed for incidental use in an agriculture or horticulture farm and any building constructed not associated with the farm activities shall not be construed as a “farm house” for the purposes of these Rules.
(40) Fire and/or Emergency Alarm System- Fire alarm system comprises of components for manually or automatically detecting a fire, initiating an alarm of fire and initiating other actions as appropriate.
(41) Fire Lift means a special lift designed for the use of fire service personnel in the event of fire or other emergency.
(42) Fire Proof Door means a door or shutter fitted to a wall opening, and constructed and erected with the requirement to check the transmission of heat and fire for a period.
(43) Fire Pump- Means a machine, driven by external power for transmitting energy to fluids by coupling the pump to a suitable engine or motor, which may have varying outputs or capacity but shall be capable of having a pressure of 3.2 kg/cm2 at the topmost level of the multi-storey or high rise building.
(44) Fire Resistance means the time during which a fire resistant material i.e. material having a certain degree of fire resistance, fulfills its function of contributing to the fire safety of a building when subjected to prescribed conditions of heat and load or restraint. The fire resistance test of structures shall be done in accordance with IS: 3809-1979 Fire Resistance Test of Structure.
(45) Fire Resistant Building- means a building in which material, which has appropriate degree of fire resistance is used. (46) Flood Prone Areas mean areas likely to have significant flood flow inundation notified by the concerned authority from time to time, as flood prone areas which may be modified or added or deleted when necessary by due notification.
(47) Floor Space Index (FSI) means the quotient obtained by dividing the total covered area (plinth) on all floors excepting the areas specifically exempted under these rules, by the Plot Area and is represented by this formula:- FSI = Total covered area on all floors Plot Area
(48) Footing A foundation unit constructed in brickwork, stone masonry or concrete under the base of a wall or column for the purpose of distributing the load over a larger area.
(49) Foundation that part of the structure, which is in direct contact with ground and transmits loads over it.
(50) Framed Building means a building in which the loads either dead or live are carried by timber, steel or reinforced concrete framing;
(51) Gallery means an intermediate floor or platform projecting from a wall of an auditorium or a hall providing extra floor area, and or additional seating accommodation and includes the structures provided for seating in stadia.
(52) Garage-Private- A building or a portion thereof designed and used for the parking of vehicle.
(53) Garage-Public - A building or portion thereof, designed other than as a private garage, operated for gain, designed and or used for repairing, servicing, using, selling or storing or parking motor driven or other vehicles.
(54) Government means the State Government.
(55) Habitable Room- A room occupied or designed for occupancy by one or more persons for study, living, sleeping, eating, kitchen if it is used as a living room, but not including bathrooms, water-closet compartments, laundries, serving and store pantries, corridors, cellars, attics, and spaces that are not used frequently or during extended periods.
(56) Height of the Building means the height measured generally from the formed ground level within the plot abutting the road / passage [excluding ramp if any within the plot upto to the roof level of the topmost livable floor]. In the case of pitched roof, height of the building means the height measured from the ground level stated above up to the point where external surface of outer wall intersects the finished surface of the sloping roof, and in the case of gables facing the road, the midpoint between the eave’s level and the ridge. Explanation: Stair-case head rooms, lift rooms, solar panels, elevated tanks and also water closet (with floor area not exceeding 10sq.m.) above topmost floor, and also architectural features, and parapet walls of height up to 1.5 meter shall not be included in calculating the height of building. In cases where earth filling is made or proposed within the site above the average level of the abutting street or road, then the height of building shall be reckoned from the filled up ground level around the building provided such filling does not exceed 1 meter above the average level of the abutting street/road.
(57) High Rise Building means a building exceeding 5 floors or 17.25m height
(58) Hut - means any building which is constructed principally of wood, mud, leaves (grass, thatch or metallic sheets) and includes any temporary structure of whatever size or any small building of whatever material made which the council may declare to be a hut for the purpose this rule.
(59) Illuminated Exit Signs- A device for indicating the means of escape during normal circumstances and power failure.
(60) Layout means laying out and division of land into plots for various uses with introduction of new road or roads for public uses.exceeding eight in number.
(61) Live Load means all loads except dead loads that may be imposed on a structure and wind loads will also be considered as live loads;
(62) Lift or Elevator means an appliance designed to transport persons or materials between two or more levels in a vertical or substantially vertical direction by means of a guided car or platform.
(63) Load Bearing Wall means wall that carries dead load other than its own weight;
(64) Lobby - means a covered space in to which all the adjoining rooms open.
(65) Local Body for the purpose of these rules means Greater Chennai Corporation, Municipal Corporation, Municipality, Town Panchayat or a Village Panchayat
(66) Loft - An intermediate floor between two floors or a residual space in a pitched roof above normal level constructed for storage with maximum clear height of 1.5 meters.
(67) Masonry - An assemblage of masonry units properly bound together by mortar.
(68) Master Plan - means a plan approved by the Government under Section 28 of the Tamil Nadu Town and Country Planning Act.
(69) Means of Escape- An escape route provided in a building for safe evacuation of occupants.
(70) Mezzanine floor is an intermediate floor between two floors above ground level subject to the following:-
i. the area of mezzanine floor is restricted to 1/3rd of the area of the floor immediately below;
ii. the height of the mezzanine floor shall be minimum 2.2 metres for non-habitable purposes and 2.5 metres for habitable purposes; and
iii. the head room height of the remaining part of the said floor shall be the total of the height of the mezzanine floor and the space below the mezzanine floor
(71) Miniature Circuit Breaker / Earth Leakage Circuit Breaker - Devices for tripping of electrical circuits in event of any fault in the circuit/installation.
(72) Mitigation means the measures taken in advance of a disaster aimed at decreasing or eliminating its impact on society and on environment, including preparedness and prevention.
(73) Non Combustible Material - A material which is not liable to burn or add heat to a fire when tested for combustibility in accordance with the latest code of Bureau of Indian Standards Method of Test for combustibility of Building Materials.
(74) Occupancy or use - The principal occupancy/use for which a building or a part of a building is intended to be used. For the purposes of classification of a building according to occupancy, an occupancy shall be deemed to include the subsidiary occupancies which are contingent upon it.
(75) Natural Disaster means a serious disruption of the functioning of a society, causing widespread human, material or environmental losses caused due to earthquake, cyclone, flood, tsunami, landslide and similar event which exceeds the ability of the affected society to cope using only its own resources.
(76) Natural Hazard means the possibility or probability occurrence of a natural event, within a specific period of time in a given area, having potential for damaging widespread area.
(77) Natural Hazard Prone Areas mean the areas likely to have
(i) moderate to very high damage risk zone of earth quakes, or
(ii) moderate to very high damage risk of cyclones or
(iii) significant flood flow or inundation, or
(iv) tsunami proneness or
(v) landslide proneness or potential, or
(vii) one or more of these hazards.
(78) Non-Structural Component refers to the components of buildings, which do not contribute to the structural strength or stability such as infill walls in Reinforced Cement Concrete frame buildings, glass panes, claddings, parapet walls, chimneys etc.
(79) Parapet - A low wall or railing built along the edge of a roof or a floor.
(80) Parking space An enclosed or unenclosed covered or open area sufficient in size to park vehicles, which is served by a driveway connecting to a street or alley and permitting ingress and egress of vehicles.
(81) Partition- An interior non-load bearing barrier, one storey or part-storey in height.
(82) Partition Wall means a wall which supports no load other than its own weight and includes-
a. A wall forming part of a building and being used or constructed to be used in any part of the height or length of such wall for separation of adjoining buildings belonging to different owners or constructed or adopted to be occupied by different persons; or
b. A wall forming part of a building and standing in any part of the length of such wall, to a greater extent than the projection of the footing on one side or ground of different owners.
(83) Passage means circulation space on land leading from a street or road to the plot or site.
(84) Permit - A valid permit or authorization in writing by the Competent Authority to carryout development or a work regulated by the rule.
(85) Plinth - The portion of a structure between the surface of the surrounding ground and surface of the floor immediately above the ground.
(86) Plinth Area - The built up covered area measured at the floor level of the basement or of any storey.
(87) Plot or site Area - means the area of a contiguous parcel of land enclosed by definite boundaries over which the applicant has legal right for development and includes part of the site used as exclusive passage, open space reservation area and internal roads within the boundaries.
(88) Plot coverage- means the extent to which the plot is covered with a building or structure (12-noon shadow) and expressed as a percentage of the ratio of the built up area to the plot area, excluding the floor area exempted from the computation of plot coverage as given in Rule 23.
(89) Private Street shall have the same meaning as defined in the Tamil Nadu District Municipalities Act, 1920.
(90) Prohibited Area means any area specified or declared to be a Prohibited Area under the relevant Act by the Central or State Government from time to time.
(91) Protected M onument means an ancient monument which is declared to be of national importance by or under the Archeological Monuments and Ancient Sites and Remarks Act, 2010.
(92) Public Buildings shall have the same meaning as defined in Tamil Nadu Town and Country Planning Act, 1971
(93) Public Street shall have the same meaning as defined in Tamil Nadu District Municipalities Act, 1920.
(94) Qualified Professional means a professional registered under Rule -17 of these Rules.
(95) Quality Control relate to construction quality and to control of variation in the material properties and structural adequacy.
(96) Quality Assurance- All planned and systematic actions necessary to ensure that the final product i.e. structure or structural elements will perform satisfactorily during service life.
(97) Quality Audit is a requirement for an independent, third party assessment of the quality and seismic or cyclone resistant features of all the multi-storeyed buildings in all parts of the state and especially in earthquake zone-III and coastal areas of the State. The quality audit report shall consist of conformance or non-conformance of structures with the technical specifications for prevention of progressive collapse during earthquake, cyclone or any other accidental load resistance and to suggest remedies/ rectification if any.
(98) Reconstruction shall have the same meaning as defined in the Tamil Nadu Town and Country Planning Act, 1971.
(99) Reconstitution of plots shall have the same meaning as defined in Tamil Nadu Town and Country Planning Act, 1971.
(100) Regulated area means any area specified or declared under section 20B under the Archeological Monuments and Ancient Sites and Remarks Act, 2010.
(101) Retrofitting means upgrading the strength of an unsafe building by using suitable engineering techniques.
(102) Road/Street Width - means whole extent of space within the boundaries of the road/street measured at right angles to the course of direction of such road/street.
(107) Room Height – The vertical distance measured from the finished floor surface to the finished ceiling.
(108) Row Housing/Row type Building (Continuous Building) – means a row of house or buildings with only front and rear open spaces.
(109) Service Road A road or lane provided at the front, rear or side of a plot for service purpose.
(110) Set back - means the open space across front or sides or rear of a plot between the building and street alignment or boundary of the plot as the case may be.
(111) Stilt floor means a part or whole of floor at ground level or the height above the ground level described in these Rules as the building is on stilts. If the stilt- parking floor is to the standards exemptible for FSI as defined in Rule 25 of these Rules it will not be counted as a floor for the purpose of defining Non High Rise building or High Rise building.
(112) Street Alignment shall have the same meaning as defined in the Town and Country Planning Act, 1971
(113) Structural Component – Refers to component of buildings which contributes to strength and stability of structures under no circumstances these are permitted to be damaged/partially or totally removed.
(117) Structure means something constructed or built having a fixed base on or other connection to the ground or other structure.
(118) Site Corner A site at the junction of and fronting on two or more intersecting roads or streets.
(119) Site Depth The mean horizontal distance between the front and rear site boundaries.
(120) Site Plan – A detailed Plan showing the proposed placement of structures, parking areas, open space, landscaping, and other development features, on a parcel of land, as required by specific sections of the development code.
(121) Site with Double frontage - A site having frontage on two streets other than corner plot.
(122) Storey means the part of a building between the upper surface of the floor and upper surface of the floor next above or the underside of roof.
(123) Spiral Staircase - A staircase forming continuous winding curve round a central point or axis provided in an open space having tread without risers.
(124) Sub-division means division of land into plots not exceeding eight in number.
(125) Tsunami Prone Areas either means an area affected in the past or an area likely to be affected in the future by tsunami, as identified and notified by the Local body as tsunami prone areas.
(126) Un-authorised Construction - means the erection or re-erection, addition or alterations which are not approved or sanctioned by the Competent Authority.
(127) Underground or Overhead Water Tank An installation constructed or placed for storage of water.
(128) Ventilation Supply of outside air into, or the removal of inside air from an enclosed space.
a. Natural Ventilation - Supply of outside air into a building through window or other openings due to wind outside and convection effects arising from temperature or vapour pressure differences (or both) between inside and outside of the building.
b. Positive Ventilation - the supply of outside air by means of a mechanical device, such as a fan.
c. Mechanical Ventilation - Supply of outside air either by positive ventilation or by infiltration by reduction of pressure inside due to exhaust of air, or by a combination of positive ventilation and exhaust of air.
(129) Water Closet (W.C)- A water flushed plumbing fixture designed to receive human excrement directly from the user of the fixture and the room or compartment in which the fixture is placed.
(130) Window Not / including bathroom an opening to the outside other than a door, which provides all or part of the required natural light or ventilation or both to an interior space and not used as a means of egress/ingress.
(131) Verandah - A covered area with at least one side open to the outside with the exception of 1.2 m high parapet to be provided on the open side. It can be a covered one by grill or jolly works, without reducing natural lighting and ventilation.
(132) Other terms used in these rules unless the context otherwise requires shall have the meaning as defined in the Tamil Nadu Town & Country Planning Act, 1971, Tamil Nadu District Municipalities Act, 1920 in the cases of Municipalities and Town Panchayats, the connected Municipal Corporation Act in the cases of Municipal Corporation concerned and the Village Panchayat Act in the cases of Village Panchayats, as amended from time to time.
3. Applicability of this Rule:
(1) Except hereinafter or otherwise provided, these Rules shall apply to all development and construction including:
(i) All developments, redevelopments, erection or re-erection, design, construction or reconstruction and additions and alterations to a building.
(ii) Part Construction: Where the whole or part of a building is demolished or altered or reconstructed, except where otherwise specifically stipulated, these Rules shall apply only to the extent of the work involved,
(iii) Change of use / Occupancy: Where use of a building is changed, except where otherwise specifically stipulated, these Building Rules shall apply to all parts of the building affected by the change.
(iv) Reconstruction: The reconstruction in whole or part of a building which has ceased to exist due to fire, natural collapse or demolition having been declared unsafe, or which is likely to be demolished by or under an order of the Authority as the case may be and for which the necessary certificate has been given by the Authority shall be allowed subject to these Rules.
(2) Nothing in these Rules shall require the removal, alteration or abandonment, nor prevent continuance of the lawfully established use or occupancy of any existing approved building.
4. Written Permission for development
(1) Subject to section 47 and Section 58 of the Tamil Nadu Town & Country Planning Act 1971 no person shall carry out any development / construction of building or structure, subdivision, layout, reconstitution or amalgamation of land or change of use of land or building without the written permission of the Competent Authority. Explanation: Such written permission shall include an electronic version issued with the digital signature of the Competent Authority.
(2) Any site approval or Permission for any development/ construction under these rules shall not absolve the applicant of his responsibilities to get clearance or permission under other Acts and Rules.
5. Competent Authority
(1) The Competent Authority for issue of Planning Permission in Chennai Metropolitan Area means, the Chennai Metropolitan Development Authority or a Local Authority concerned to whom the Chennai Metropolitan Development Authority has delegated the powers for issue of Planning Permission.
(2)The Competent Authority for issue of Planning Permission in the rest of the State means, the Appropriate Planning Authority except those single Local Authorities which have been declared as Planning Authorities themselves or the Director to whom the power to issue concurrence is vested with in respect of Non- Plan Areas or the concerned Regional Deputy/Assistant Director of Town & Country Planning or the Local Authority or the Officer to whom the power to issue such concurrence or any order in relation to the permission for the development in respect of Non-Plan areas, is delegated by the Director or the Officer to whom the power is vested with to carry out certain activities like receive application and to issue permission as prescribed in various provisions of these Rules.
(3)The Competent Authority for issue of Building Permit means the Executive Authority of Local Body or Agency or Person to whom the powers to implement these rules have been delegated by the Executive Authority. Provided that in the case of Village Panchayat, the Competent Authority for upto four dwelling units and 4000 sq. ft. of residential building shall be Village Panchayat President and the for all other developments, Block Development Officer shall be the Competent Authority.
Manner of Obtaining Permission:
(6) Application for Planning Permission and Building Permit
(1) For the purpose of obtaining Planning Permission / Building Permit, the applicant who should be the owner of the land or leaseholder or power of attorney holder who has right over the land to develop, shall submit an application on-line in the prescribed Form stipulated in Rule 6(5) of these rules to the Competent Authority.
(2) The following operational constructions and installations of Government, whether temporary or permanent, which are essential for the operation, maintenance, development or execution of any of the following services are exempted from applying under these Rules.
ii. National Highways;
iii. National Waterways;
iv. Major ports;
v. Airways and Aerodromes;
vi. Posts & Telegraphs, Telephone, Wireless, Broadcasting and other like forms of communications;
vii. Regional grid for Electricity; and viii. Defence
(3) The departments/agencies specified in Sub Rule (2), which are exempted from seeking approval, shall send in advance to the Competent Authority the details of the development they intend to carry out for information and records of the Competent Authority andLocal body.
(4) When any department of the state government or the central government other than those specified in Sub Rule (2), intends to carry out development of any land or building, the officer in charge of the same shall apply in writing in the Form with necessary documents and plan to the Competent Authority of the local body and obtain clearance for the intended development complying with these rules.
(5) Government departments are exempted from the payment of scrutiny fee or any other fee/charge.
(6) The plan submitted under Sub Rule (4) shall be prepared by a qualified architect / engineer and structural aspects of the design shall be certified by a qualified structural engineer.
(7) An application in Form -‘A’ accompanied by evidence of ownership, plans, specifications, etc., mentioned therein shall be submitted to the Competent Authority in case of subdivision / layout or reconstitution or amalgamation of land for building purposes. (copy of Form A given in Annexure I)
(8) An application in Form -‘B’ accompanied by evidence of ownership, detailed plans, specifications, site plan, and topo plan showing existing developments to a radius of 100 metres drawn to a scale of 1:500 and such other details as may be prescribed from time to time shall be submitted to the Competent Authority, in the case of development of land and buildings, change of land and building use and in the case of site approval. (copy of Form B along with checklist of particulars furnished in Annexure II).
(9) An undertaking in the prescribed format as furnished in Annexure II by the registered professionals to the Competent Authority in the case of developments such as Non High Rise Buildings and High Rise Buildings and other developments as may be decided by the Competent Authority. (copy of the undertaking furnished in Annexure III).
(10) The Competent Authority may seek any additional particulars as deemed fit for processing the application.
7. Scrutiny fees
(1) Scrutiny Fee means a fee for scrutinizing the applications, collected from the applicant along with the plan or revised plan or modified plan submitted by the applicant.
(2) Every application for planning permission shall be accompanied by a scrutiny fee as calculated in the following manner:
(a) Plans submitted along with planning permission applications per sq.m. of floor area of the building-Rs.2.00
(b) Ist revised plan per sq.m. of floor area of the building-Rs.1.00
(c) 2nd revised plan per sq.m. of floor area of the building-Rs.0.40
(d) 3rd revised plan per sq.m. of floor area of the building-Rs.0.20
(e) Subsequent revised plans Nil
(ii) Layouts/subdivisions, reconstitutions per sq.m. of land area Rs. 0.75
(iii) Re-classifications (lump sum) Rs.30,000 (for CMA) Rs.20,000 (for other areas)
(3) In case of layouts or subdivisions or site approval applications, the rates of scrutiny fee shall be prescribed and notified by the Government from time to time subject to the maximum rate of Rs. 5 per sq.m. and minimum rate of Rs.1 per sq.m. of the site area (excluding sub-divisions for EWS plots not exceeding 40 sq.m. each).
(4) The Executive Authority of the Local Body may, for scrutinising the applications for Building Permit shall collect scrutiny fee from the applicants, along with the plan or revised plan or modified plan submitted by the applicant, at the rates as may be prescribed and notified by the Government from time to time subject to the maximum rate of Rs.10 per sq.m. and minimum rate of Rs. 2 per sq.m. of floor area of building (excluding buildings for EWS housing with dwelling units not exceeding 30 sq.m. in floor area each).
(5) In the case of reclassification the cost of publication of reclassification in Newspapers and Govt. gazette. (if the actual cost exceeds the said amount, the excess amount is also payable by the applicant)
(6) Any other charges as levied by the Competent Authority from time to time.
(8) Plan Requirements
(1) The applications for planning permit / Building permit shall be accompanied by the key plan, topo plan, site plan, building plan, services plans etc.(coloured as specified in the National Building Code), specifications, Structural designs and drawings along with the Structural Design Basis Report and Report of Soil Test / Geo-technical Investigation Report for developments specified in the rules, structural sufficiency certificate, certificate of under taking by the Registered Professionals and certificate of supervision etc as prescribed below:-
i) Key plan - drawn to a scale of not less than 1 in 10,000 showing the details of the boundary, location of the site with respect to neighbourhood landmarks, and existing network of roads/streets; the minimum dimension of the key plan shall be not less than 10 cm.
ii) Topo Plan - drawn to a scale of not less than 1 in 5000 showing the details of the following, which lie within a radius of 500 m: a. the boundary location of the site with respect to neighbourhood land marks, b. existing network of roads/streets with details of its widths, c. proximity to stone quarries, stone crushers, water bodies /Airport/Aerodrome, Air Force Station, cremation or burial grounds, railway tracks, and reserved forests indicating its distance from the site clearly. d. Such other particulars as may be prescribed by the Competent Authority.
iii) Site plan - shall be drawn to a scale of not less than 1 in 500 for a site upto one hectare, and not less than 1 in 1000 for a site more than one hectare and shall show
a. The boundaries of the site
b. The position of the site in relation to neighbouring street;
c. The extent and dimensions of the site affected by any street alignment or road widening or proposed new road or missing link as per the approved Master Plan/ DDP or as notified by the Local body;
d. The name of the streets in which the building is proposed to be situated, if any;
e. All existing buildings standing on, over or under the site including service lines;
f. The position of the building and of all other buildings (if any) which the applicant intends to erect upon his site in relation to
(1) The boundaries of the site and in case where the site has been partitioned, the boundaries of the portion owned by the applicant and also of the portions owned by others.
(2) All adjacent street, buildings (with no. of storeyed and height) and premises within a distance of 15m of the site and of the contiguous land (if any) referred to in (a) ; and
(3) If there is no street within a distance of 15m of the site, the nearest existing street.
g. If the site is an unauthorised subdivision, then the details of the residuary plots/subdivisions including the details of the buildings / structures there on
h. The means of access from the street to the building, and to all other buildings, (if any) which the applicant intends to erect upon the site.
i. Space to be left about the building to secure a free circulation of air, admission of light and access during emergency;
j. Vehicle parking arrangements;
k. The width of the street (if any) in front and of the street (if any) at the side or near the building;
l. The direction of north point relative to the plan of the buildings
m. Any physical features, such as wells, drains, etc.
n. Alignments of the LT/HT electric over head power lines or such underground cables if it lie within the site or within a distance of 10 m. from the site, and the spatial location from the same to the building existing/proposed; and
o. Rain water harvesting provisions within the plot
p. Provisions for water supply and sewage disposal system wherever required by the Competent Authority
q. Such other particulars as may be prescribed by the Local body.
iv) Building plan with details of section, elevation etc. drawn to a scale of 1:100; the plans and details shall
a. Include floor plans of all floors together with the covered area clearly indicating the size and spacing of all framing members and sizes of rooms and the position of stair cases, ramps and lift wells
b. Show the use or occupancy of all parts of the buildings
c. Show exact location of essential services (for example WC, bath and the like)
d. Plans, elevations & sections of Private Water Supply and disposal system.
e. Include at least one elevation from the front showing the height of the building and rooms and also the height of parapet
f. Include at least one section through the stair case
g. Show all structures existing /proposed to be constructed within the site;
h. Include the structural arrangements with appropriate sections showing type/ arrangement of footings, foundations, basement walls; structural load bearing walls, columns and beams, and shear walls and arrangement/spacing of framing members, floor slabs and roof slabs with the material used for the same including Detailed structural drawing showing reinforcement details .
i. Show all street elevations
j. Give dimensions of the projected portions beyond the permissible building line.
k. Include terrace plan indicating the drainage and the slope of the roofs;
l. Vehicle parking arrangements within buildings, and
m. Give indications of the north point relative to the plan.
Note: The requirement of 1:100 is permitted to be flexible for specific details needed for further illustration; and also for drawings for these in electronic form.
(2) In case of subdivision/layout or reconstitution or amalgamation of land for building purposes, the application shall be accompanied by the subdivision/layout/ reconstitution or amalgamation plan which shall be drawn to a scale of not less than 1:500 containing the following:
a. Scale used and north point;
b. The location of all the proposed and existing roads within the land including details of the extent and dimensions of the site affected by any street alignment or road widening or proposed new road or missing link as per the approved Master Plan/ DDP or as notified by the Local body;
c. Alignments of the LT/HT electric over head power lines or such underground cables if it lie within the site or within a distance of 10 m. from the site,
d. Dimension of plot along with building lines showing the setbacks with dimensions within each plot.
e. The location of existing drains, sewers, public facilities and services and electrical lines etc.
f. A statement indicating the total area of the site, area utilised under roads, parks and playground, shops and other commercial spaces, schools, public purpose sites etc. along with the percentage.
g. In case of plots which are subdivided with built up area, in addition to the above, the details on the means of access to the subdivisions from existing streets; and
h. If the site is an unauthorised subdivision, then the details of the residuary plots/ subdivisions including the details of the buildings/structures thereon.
i. Such other particulars as may be prescribed by the Executive Authority of the Local body.
(3) For all High Rise buildings in addition to items specified in Rule 8(1)(1) to (iv), the following additional information shall be furnished / indicated in the building plan:
a. Access to fire appliances / vehicles with details of vehicular turning circles and clear motorable access way around the building.
b. Size (width) of main and alternative stair cases along with balcony approach, corridor, ventilated lobby approach
c. Location and details of lift enclosures
d. Location and size of fire lift
e. Smoke stop lobby, door, where provided
f. Refuse chutes, refuse chamber, service duct etc.
g. Refuge area if any
h. Details of building services – air conditioning system with position of fire dampers and mechanical ventilation system, electrical services, boilers, gas pipes etc.
i. Details of exits including provision of ramps etc., for hospital and special risks.
j. Location of generator, transformer and switch gear rooms
k. Smoke exhauster system, if any
l. Details of fire alarm system net work
m. Location of centralised control connecting all fire alarm systems, built-in fire protection arrangements and public address system etc.
n. Location and dimensions of static water storage tank and pump room along with fire service inlets for mobile pump and water storage and tank.
o. Location and details of fixed fire protection installation, such as sprinklers wet risers, hose-reels, drenchers, etc. and
p. Location and details of first aid fire fighting equipments / installations.
(4) In case of Industrial Developments, the following additional information shall be furnished / indicated in the building plan:-
a. Details of the machines (for manufacturing / production) involved (both existing and proposed).
b. Details of the no. of workers (both existing and proposed)
c. Detailed report on the raw materials used, process and machineries involved, effluent discharge methods proposed, product manufactured, power required (i.e. LT/HT), action taken to alleviate / minimize its negative impact, if any, or the environment, etc.
(5) Apart from the owner, the professionals to be involved, for different types of developments, in the preparation of plans and designs, supervision, quality control and ensuring completion as per the approved plan, shall be as prescribed below:
a. Non High Rise buildings with height upto 9.0m. Registered Architect (RA) or Registered Engineer (RE)
b. Non High Rise buildings with height more than 9.0m. upto 17.25m. Industrial Developments and Institutional Developments (other than High Rise Buildings)
Registered Developer (RD),
Registered Architect (RA) or
Registered Engineer (RE),
Registered Structural Engineer (RSE), and
Registered Construction Engineer (RCE),
Registered Geotechnical Engineer
c. High Rise Buildings
Registered Developer (RD),
Registered Architect (RA) or
Registered Engineer (RE),
Registered Structural Engineer (RSE),
Registered Geo-Technical Engineer (RGE),
Registered Construction Engineer (RCE), and
Registered Quality Auditor (RQA)
d. Sub divisions
Registered Architect (RA) or
Registered Engineer (RE) or
Registered Town Planner (RTP)
e. Layout Developments
Registered Developers (RD), and
Registered Architect (RA) or
Registered Engineer (RE) or
Registered Town Planner (RTP)
(1) General Requirements
a) The buildings intended to be constructed and developments to be made shall be in conformity with the site requirements specified in these rules. Generally all development works for which permission is required shall be subject to inspection by the Competent Authority or an official nominated by the Competent Authority, as deemed fit, before issue of permission and also during construction.
b) However, the Competent Authority may cause inspection for such developments where its risk assessment deems it fit for inspection. In all cases inspection shall be carried out by professionals to be empanelled by the Competent Authorities. The qualifications and other conditions for empanelment of professionals for carrying out inspection shall be prescribed by the Government from time to time.
c) A single joint site inspection shall be carried out by all the concerned Authorities for issue of Planning Permit/Building Permit/Completion certificate)
d) The applicant shall permit authorized officers of the competent authority to enter the site at any reasonable time for inspection for the purpose of enforcing these rules.
e) The applicant shall keep a copy of the approved plan at the premises where the development is permitted to be carried out.
f) The applicant shall keep a board at the site of development mentioning its address (the survey No, Block No, Village Name, Door Number, Street Name, Locality, etc.), name of owner and name of Registered Architect/Engineer on record , Registered Developer on record, Registered Structural Engineer on record, Registered Construction Engineer on record , and the details of the building permit.
g) Before commencement of the building work at site for which building permission has been granted, the owner shall within the validity period of Building Permission give notice to the Authority, of his intention to start the work at the building site in the Form No.2 given in Annexure XIV.
(2) During Progress of Construction
a) Minimum Stages for recording progress, checking and issuing continuance certificate (except for non High Rise Buildings upto 9m. in height)
ii) First Storey
iii) Middle storey incase of High Rise Buildings, and
iv) Last storey.
b) At each of the above stages, the owner / developer through the Registered Architect/Registered Engineer shall submit to the designated officer of the Competent Authority a progress certificate in the given formats (Form Nos.3,4,5 & 6 in Annexure XIV) and the structural Inspection Report (Form No.11 in Annexure XIV). This progress certificate shall be signed also by the Registered Architect/Registered Engineer on record, Construction Engineer on record and structural engineer on record. The Structural Inspection Report shall be signed by the Registered Structural Engineer on record.
c) On receipt of the progress certificate from the owner /registered developer, through the Registered Architect/Registered Engineer it shall be the duty of the competent authority, to check any deviation from the approved plan and convey decision within 7 working days to the owner /developer for compliance.
(3) Completion Report
a) It shall be incumbent on every applicant whose plans have been approved, to submit a completion report in Form No. 7 through the Registered Architect/Registered Engineer
b) It shall also be incumbent on every professional who is engaged under these rules to design, supervise the erection, or re-erection of the building, to submit the completion report in Form Nos. 8,9 & 10 prescribed under these rules.
c) No completion report shall be accepted unless completion plan is approved by the Competent Authority.
d) The final inspection of the work shall be made by the concerned Competent Authority within 21 days from the date of receipt of notice of completion report.
(1) The Competent Authority may subscribe such procedure from time to time exempting site inspection for certain categories of development. Such applications for permission shall be accompanied by self certification of the required documents and an undertaking in the prescribed format to be furnished by the Competent Authority.
(2) If the Plan and information furnished by the applicant do not provide all the particulars necessary to process the application satisfactorily, the Competent Authority may within 15 days from the date of receipt of Plans/Applications require the production of such further particulars and details as it deems necessary.
(3) If the plan and the information furnished by the Applicant are found to satisfy the requirements of these rules,
i. The written permission shall be issued by the Competent Authority within 45 days after the receipt of the plan and all other requirements.
ii. While granting permission, the Competent Authority may impose such restrictions and conditions, which may be necessary under these rules.
(4) In case, the concerned Competent Authorities fail to issue written permission within prescribed time limit then the application for planning permission / building permit shall be deemed to be approved.
(5) In cases where the application for construction of the building is not in accordance with the of the Act or these rules, or where the applicant fails to furnish the additional particulars called for, the Competent Authority may reject the application or refuse permission for reasons to be recorded in writing, and furnish a copy of the same to the applicant.
(6) No building permission, is necessary for the following alterations, which do not otherwise violate any provisions regarding general building requirements, structural stability and fire safety requirements of this Rule;
a) Plastering and patch repairs;
b) Re-roofing or renewals of roof including roof of intermediate floors at the same height;
c) Flooring and re-flooring;
d) Opening and closing of windows, ventilators and doors not opening towards other's properties and / or public road/property;
e) Replacing fallen bricks/stones
f) Construction or re-construction of sunshade not more than 75cms. in width within one's land and not overhanging over a public street;
g) Construction or re-construction of parapet not more than 1.2 m. in height and also construction or re-construction of boundary wall not exceeding 2 m
h) White-washing, painting, etc. including erection of false ceiling in any floor at the permissible clear height provided the false ceiling in no way can be put to use as a loft etc;
(7) A copy of the approved site plan and building plans shall be kept at the site at all times when building operations are in progress and such plans shall be made available at all reasonable times for the inspection Competent Authority.
(8) The details of the development for which planning permission issued, date of expiry of permit etc. shall be displayed in the format prescribed by the Competent Authority on a board of size of atleast 60cm. x 120 cm.
(9) Nothing shall prohibit the filing of amendments to an application or plan or other record accompanying the same at any time before the completion of the work for which a permit was granted. However, construction in deviation to the approved plan shall not be preceded till the revised plan is approved. Further, this provision shall not entitle any person to make any deviation in contravention of the Act and these rules.
(10) a) Approval of drawings and acceptance of any statement, documents, structural report, structural drawings, progress certificate or building completion certificate shall not discharge the Registered Engineer on Record, the Registered Architect on Record, Registered Construction Engineer on Record, Registered Structural Engineer on Record, Registered Developer and Owner from the responsibilities imposed under the Act, Building Rules and the laws of tort and local Acts.
b) The landowner (or lessee or power of attorney holder) or developer who makes the development, the Registered Architect /Engineer on Record, and the Registered Construction Engineer on Record, shall be jointly and severally held responsible if any unauthorized construction, addition and alternation are done without prior permission of the Competent Authority.
(11) Limitations of Permission:
(1) The permission granted by the Competent Authority shall not mean responsibility or clearance of the following aspects:
(a) Title or ownership of the site or building.
(b) Easement Rights.
(c) Structural Reports, Structural Drawings and structural aspects. The Registered Architect/Structural Engineer on record as the case may be, shall be responsible for defects in the design.
(d) Workmanship, soundness of structure and materials used.
(e) Quality of building services and amenities in the construction of building
(f) Other requirements or licenses or clearances required for the site/premises or activity under various other laws.
(12) Demolition of buildings:
a) If any person intends to demolish a building either in whole or in part, he shall submit an application to the Executive Authority of Local Body or Agency or Person to whom this power has been delegated by the Executive Authority for permission to execute the work, along with a demolition deed executed by him.
b) The Executive Authority of Local Body or Agency or Person to whom this power has been delegated by the Executive Authority shall grant permission to execute the work subject to such condition as he may deem necessary for ensuring the health, safety of the people living within or near the building. c) The Executive Authority of Local Body or Agency or Person to whom this power has been delegated by the Executive Authority shall collect a demolition charges at the rate not less than Rs.50 per sq.m. and that he will abide by the rules and other conditions if any, stipulated for demolition of such buildings.
(13) Cancellation of Permit
The Planning / Building Permit if secured by any person by any misrepresentation or by production of false documents, such Planning / Building Permit will be cancelled after issuing a show cause notice.
(14) Renewal of Permit
(1) Planning / Building Permit granted under these rules shall be valid for five years from the date of issue and the construction shall be completed within the same. However the Competent Authority may on application made before the expiry date, extend the Planning a/Building permit period as the case may be only once for another 3 years.
(2) For such Permit Renewals, fees at the rates as may be prescribed by the Competent Authority shall be paid by the applicant.
Confirmity of Developments
(15) The Developments to be in conformity with these regulations
(1) No developments shall be in contravention of these Regulations.
(2) No land, premises or building shall be developed, constructed, altered, reconstructed, subdivided, amalgamated, reconstituted, laid-out, changed or put to use which is not in conformity with the provisions of these regulations.
(3) In the case of an area comprised in a Detailed Development Plan approved under the Act, the Developments therein shall be in conformity with that Detailed Development Plan. Provided that where for a road, street alignment is not prescribed in Detailed Development Plan, but it is prescribed in the Master Plan, then street alignment in Master Plan shall apply. Provided further that in cases where an area is declared as Continuous Building Area either in Master Plan or in Detailed Development Plan, the area shall be taken as Continuous Building Area and developments therein shall be regulated accordingly; however, Continuous Building Area parameters shall not apply to plots in approved layout areas unless specifically earmarked for continuous building developments.
(4) All detailed Town Planning Schemes sanctioned under the Town Planning Act 1920 (Tamil Nadu Act-7 of 1920) shall stand superseded by the Master Plan/Detailed Development Plan approved for that area. All developments therein shall be regulated with reference to the Land Use classification indicated in the Master Plan/Detailed Development Plan for that area and development regulations.
(16) Designation of use in Master Plan or Detailed Development Plan
(1) Where use of a site or premises is specifically designated (not broad land use zoning) in the Detailed Development Plan/Master Plan, it shall be used only for the specific purpose so designated, unless the land use of the site is varied as provided in the Act.
(2) Where the use of the site or premises is not specifically designated in the Detailed Development Plan/Master Plan, it shall be used for the uses/activities permissible in the land use zone in which the site or premises falls as per the Detailed Development Plan / Master Plan. Provided further that a non-conforming use (i.e. an use which under these regulations becomes not permissible at the site) shall not be extended or enlarged.
Explanation: Improvements to building or machinery intended to make the operations more economical, cleaner, less noisy and to provide amenities to workers which do not add to the manufacturing capacity as may be specially approved by the Authority shall not be deemed to be extension or enlargement. Provided also that it will be open to the Authority to order at any time the discontinuance or continuance subject to such restrictions and conditions as may be imposed by on an existing use, which is non-conforming.
(3) Where for an area both Master Plan and Detailed Development Plan were / are sanctioned, the designated use shall be as shown in the latest development Plan.
(4) Where for an area, a Detailed Development Plan has been prepared and the consent of the Government has been given under Section-26 of the Act, the provisions of that Detailed Development Plan shall apply.
(5) Where for an area, a detailed lay-out plan for land development has been prepared and approved by the Authority or such other Executive Authority of Local Body or Agency or person to whom/which the power has been delegated by the Authority, the land use shown on such Lay-out Plan shall be applicable and the developments in the area shall be regulated according to these regulations. Provided that if the layout plan was approved prior to 5.8.1975 in case of CMA and prior to the date on which the publication of notification of Master Plan in the Tamil Nadu Government Gazette for rest of the State, the higher order land use zoning of Master Plan/Detailed Development Plan shall be applicable for the plot.
Provided further that if land use is varied under section 32 sub-section (4 )of the Act, subsequent to approval of the Master Plan, Detailed Development Plan or the layout as the case may be then the reclassified land use is applicable for such land.
(6)In areas designated for Primary Residential Use in Master Plan/Detailed Development Plan, (to be read with the sub regulation (5) above), sites abutting and gaining access from roads of width 12 m. and above, but less than 18 m. are deemed to have been zoned for mixed residential use zone.
(7)In areas designated for Primary Residential and / or Mixed Residential Use zone in the Master Plan/Detailed Development Plan. (to be read with the sub regulation 5 above), sites abutting and gaining access from roads of width 18 m. and above are deemed to have been zoned for Commercial use zone.
(8) All areas set apart for Housing of Economically Weaker Section in the sanctioned Schemes by Tamil Nadu Housing Board and areas declared as Slums by Tamil Nadu Slum Clearance Board, slums improved by Tamil Nadu Slum Clearance Board under Slum Improvement Scheme projects and also the EWS plots in the approved layouts are deemed to have been declared as ‘EWS’ areas.
(9) When a site falls in different land use zones, then developments in that site shall be made with reference to its conformity in each of the land use zones the site comprises.
(10) Where more than one activity is existing or proposed in a building / a site, the space regulations that govern the development shall be based on the dominant activity in that building / site decided on the basis of the percentage of floor area used;
(11) Where more than one type of development (such as Multi Storeyed Building, Group Development etc.) is existing or proposed in a site,
(a) the set back shall be regulated with reference to the individual type of development,
(b) the site extent, height of building, abutting road width shall be regulated with reference to the highest order of development existing or proposed, and
(c) the Floor Space Index, coverage etc. shall be regulated with reference to the dominant type of development (on the basis of floor area) within the site.
(17) Correlation of land use zones in Master Plan, Detailed Development Plan and Development Regulations:
||Use classification in Master Plan
||Use classification in Detailed Development Plan
||Use classification in Development Regulations
||Primary Residential Use
||Primary Residential/Residential use
||Mixed Residential use
||Mixed Residential / Residential use
||Light Industrial use
||General Industrial/ Controlled Industrial use
||Special and Hazardous Industrial Use
||Special and Hazardous Industrial Use
||Special and Hazardous Industrial Use
||Institutional /Educational use/Public/Semi-public
||Institutional / Public purpose
||Open space and recreational use
||Open space and recreational use
||Open space recreational (in Chennai Metropolitan Area) Public use zone (in other areas of the State)
||Non – urban only in Chennai Metropolitan Area
||Urbanisable use (only in Chennai Metropolitan Area
(18) Proposed width of roads -
(1) Proposed right of way for all major roads together with setback lines for them shall be in accordance with the approved master plan/DDP in that area.
(2) Notwithstanding anything contained in the Master Plan / Detailed Development Plan or in these Rules, with the prior approval of the Council, the Executive Authorities of the local bodies may under the Act provisions prescribe street alignments (with proposed road widths) higher than those given in the Master Plan / Detailed Development Plan or any other statutory plan and implement the same.
(19) Development prohibited/restricted areas:
The regulations for Development prohibited / restricted areas are furnished in Annexure XVII. The Government may notify modifications to these regulations from time to time and such modifications shall prevail.
Completion Certificate – (CC)
(20) Application for Completion Certificate
(1) For all buildings, the Applicant/Owner/Power of Attorney Holder/Registered Developer and any other Person who is acquiring interest shall obtain Completion Certificate, certifying that the building has been completed as per the approved plan, from the Competent Authority that has issued Planning Permit before getting service connections such as electric power connection, water supply sewerage connection. These service connections shall be given by the service provider to these buildings only after the production of the Completion Certificate.
(2) The owner or developer shall submit an application to the Competent Authority in the first stage after completion of work upto plinth level requesting for issue of order for continuance of work.
(3) The owner or developer through the registered professional shall submit to the designated officer of the Competent Authority a progress certificate in the given format at the stage of first storey level, middle storey in case of multi storeyed buildings and last storey along with structural inspection report as provided for under section 7(2) of these rules.
(4) On receipt of the progress certificate from the owner / registered developer through the registered professional, the Competent Authority shall check for any deviation from the approved plan and convey decision within 7 working days to the owner / developer for compliance.
(5) If the order of continuance is not issued within 15 days of receipt of the respective application, it will be taken as deemed to be issued and the owner / developer may proceed with the construction without any deviation to the approved plan.
(6) The owner / Power of Attorney holder / registered developer / any other person who has acquired interest shall submit application in complete shape for issue of completion certificate after completion of the entire construction and the report on completion of construction in full shape without requiring any other civil works.
(7) The Competent Authority may on its own or through a subordinate official or a qualified professional inspect or come to be inspected the work atleast the two stages of construction viz, plinth level and completion of construction and such inspection shall include confirmation that
(a) the work was executed and the building was completed as per the approved plan and prevailing Development Regulations (DR) as stated in these rules along with the norms prescribed for issuing the completion certificate
(b) it shall be obligatory on the part of the applicant to confirm that certificate of Lift Inspector has been obtained regarding satisfactory erection of lift.
(c) it shall also be obligatory on the part of the applicant to confirm the certificate to the Directorate of Fire & Rescue Services for completion of fire safety requirements as applicable for the type of building has also been obtained.
(8) If any project consists of more than one detached or semi detached building / buildings in a building unit and any building / buildings thereof is completed as per approved plan (such as parking, internal roads, height of the building, infrastructure facilities, lift and fire safety measures), the Competent Authority may issue completion certificate for such detached or semi detached building / buildings in a building unit.
(9) The completion certificate shall not be issued unless the information is supplied by the owner, developer, the registered professionals concerned in the schedule as prescribed by the Competent Authority from time to time.
(10) The Competent Authority shall within 30 days from the date of receipt of application for completion report inform, communicate its decision after necessary inspection about grant of completion certificate.
(11) Connection to the Municipal sewer / water mains:
a) Temporary connection for water, electricity or sewer, permitted for the purpose of facilitating the construction, shall not be allowed to continue in the premises after completion of the building construction.
b) No connection to the Municipal water mains or to the Municipal sewer line with a building shall be made without the prior permission of the Authority and without obtaining occupancy / completion certificate.
c) In case the use is changed or unauthorised construction is made, the Authority is authorised to discontinue such services or cause discontinuance of such service.
(21) Illegal Occupation of Building
(1) Notwithstanding the provision of any other law to contrary, Executive Authority may by written notice, order any building or any portion thereof to be vacated forthwith or within the time specified in such notice:-
a) if such building or portion thereof has been unlawfully occupied in contravention of these Rules
b) if a notice has been issued in respect of such building or part thereof requiring the alteration of restriction of any works specified in such notice have not been commenced or completed.
c) if the building or part thereof is in a ruinous or dangerous condition, which are likely to fall and cause damage to any person occupying, resorting to or passing by such building / structures or any other structure or place in the neighbourhood thereof.
(2) The reasons for requiring such building or portion thereof to be vacated should be clearly specified in every such notice.
(3) The affixing of such written notice or any part of such premises shall be deemed to be a sufficient intimation to the occupiers of such building or portion thereof.
(4) On issue of such notice, every person in occupation of the building or portion thereof to which the notice relates shall vacate the building or portion as directed in the notice and no person shall so long as the notice is withdrawn, enter the building or portion thereof, except for the purpose of carrying out any work of reinstatement which he may lawfully permitted to carry out.
(5) The Competent Authority may direct that any person who acts in contravention of above provision or who obstructs him in any action taken under these regulations shall be removed from such building or part thereof by any police officer, and may also use such force as is reasonably necessary to effect entry in the said premises.
(6) The cost of any measures taken under this provision shall be recovered from the owners/ occupants.
(22) Illegal Developments:
If any construction or development is carried out illegally or in deviation to the plan approved, the competent authority may take action against the constructions / developments as provided in the Act and in these rules
Registration of Professionals
23). Registration of Architects (RA), Engineers (RE), Structural Engineers (SE), Construction Engineers (CE), Quality Auditors (QA), Town Planners (TP) and Developers (D), and their Duties and Responsibilities
a. The Competent Authority shall register Architects (RA), Engineers (RE), Structural Engineers (RSE), Construction Engineers (RCE), Quality Auditors (RQA), Town Planners (RTP) and Developers (RD). Application for registration shall be submitted by these professionals to the competent authority/BDO in case of Village Panchayat,
b. On receipt of such application, and after satisfying the educational qualifications and experience in the field, and the certificate of the screening committee to be constituted by the Chennai Corporation, CMA, DTP,DRD as the case may be, the competent authority may register on payment of registration fee of five thousand rupees and subject to such other conditions as he may thinks fit.
c. Registration shall be valid for a period of five years and shall be renewable.
d. The Competent Authority shall cause to maintain a register of licensed professionals stated above. The list of names shall be updated every year and the updated list shall be placed before the council every year for information.
e. Where any registered professional makes any misrepresentation or commits any fraud in certifying the plan and other documents submitted under these rules, the Competent Authority may suspend or cancel the registration of such professional done under these rules and notify the same in their official website. Provided that no registration shall be cancelled unless the person concerned is given an opportunity to make a representation in writing.
f) On cancellation of such registration by the Competent Authority under sub-rule (e) above, the name of such registered professional shall be deleted from the register maintained by him and a report in this regard shall also be placed before the council for information.
g) The registration, qualification and duties of professionals shall confirm to the rules given in the Annexure XIII.
(2) Duties and Responsibilities - General duties and responsibilities applicable to all
(i) They shall study and be conversant with the provisions of the Local Acts, Rules and Regulations and standing orders approved by the Competent Authority.
(ii) They shall inform the Competent Authority of their employment /assignment/ resignation for any work within 7 days of such employment / assignment / resignation.
(iii) They shall prepare and submit all plans, documents and other details they are required to do so in a neat, clean and legible manner and the papers properly arranged.
(iv) They shall submit plans documents and details without any scratches or corrections. Site conditions shall be correctly shown.
(v) They shall personally comply with all queries / requisitions received from the Competent Authority in connection with the work under their charge promptly, expeditiously and fully at one time. When they do not agree or cannot comply with the requisition / query, they shall state their objection in writing within the time as may be stipulated so that, the Competent Authority can decides on its merit in the matter.
(vi) Any corrections or changes made in the plan or additional documents and details by the professionals to the Competent Authority shall be in consultation with the owners / developer and shall be with their acceptance / agreement.
(vii) They shall clearly indicate on every plan, document / forms in which they sign the details of their designation such as Registered Architect. Registered Engineer, Registered Structural Engineer etc., with registration number and their, full name and address below the signature for identification.
(viii) They shall not accept the employment for preparation and submission of plans, documents and supervision of any work if the same is intended or being proposed to be executed or already executed in contravention of provisions of the Act or the Rules including these rules.
(ix) The registered person shall provide the information and undertaking for the work undertaken by him in the forms prescribed by the Competent Authority.
(x) The Owner / Developer shall compulsorily appoint a Construction Engineer for over all constant supervision of construction work on site and such person appointed shall not be allowed to supervise more than one such site at a time. (xi) The Registered architect/Registered Engineer and the structural engineer shall be responsible for adhering to the provisions of the relevant and prevailing Indian Standard Specifications including the National Building Code. However they will not be held responsible for the severe damage or collapse that may occur under any natural force going beyond their design courses provided in the above said Standards / NBC.
(xii) The Registered Architect/Engineer is solely responsible for obtaining the certificate required under this rule from the registered professionals.
(xiii) In the event of any deviations the Registered Architect/Engineer is the solely responsible to bring it to the notice of the Competent Authority. Note: Specific additional Duties and Responsibilities of the professionals and the owner/ developer are stated in the Annexure XIII.
24) Appointment of Professionals
(1) The Owner/Registered Developer shall appoint Registered Architect (AR), Registered Engineer (ER), Registered Structural Engineer (SER), Registered Geo Technical Engineer on record (GER), Registered Construction Engineer (CER), Registered Town Planner (TPR) and Registered Quality Auditor (QAR) as required. A proper written agreement(s), in a standard format(s), should be entered upon with such professional(s) engaged by the owner/developer.
(2) The Owner / Registered Developer shall submit a list of the appointed registered professionals with the application for Planning Permission/ Building Permit to the Competent Authorities. (Consent/undertaking from these professionals is needed in the required format at the time of seeking Planning Permission/ Building Permit or change in professionals).
(3) The Owner/Registered developer shall not appoint the same professional as Registered Engineer/Registered Structural Engineer/Registered Construction Engineer as Quality Auditor.
(25) Change of Owner / Developer / Professionals
(1) If during the construction of the building the Owner / Registered Developer(RD) / Registered Architect on Record (AR) / Registered Engineer on record (ER) / Registered Structural Engineer on Record (SER) / Registered Geo Technical Engineer on record (GER) / Registered Construction Engineer on Record (CER) / Registered Quality Auditor on Record (QAR) is changed, he shall intimate the Competent Authority by a registered letter that he was no longer responsible for the project, and the construction shall have to be suspended until the new Owner / Registered Developer / Registered Architect on Record (AR) etc., undertakes the full responsibility for the project as prescribed in these rules and also in the forms.
(2) A new Owner / Registered Developer (RD) / Registered Architect on Record (AR) / Registered Engineer on Record (ER) / Registered Structural Engineer on Record (SER) / Registered Geo Technical Engineer on record (GER) / Registered Construction Engineer on Record (CER) and Registered Quality Auditor on Record (QAR) shall inform the change to the Competent Authority, and before taking responsibility as stated above, check as to whether the work already executed is in accordance with the Building Permit granted by the Competent Authority. He / She may go ahead with the remaining works only after obtaining permission with the Competent Authority.
(26) Applicability of other Rules
(1) In the notified Hill Stations Considering the ecological sensitiveness and need for conservation of the notified hill stations, the Tamil Nadu District Municipalities (Hill Stations) Building Rules, 1993 have been framed and notified. The provisions of these revised Building Rules not in consistent with the provisions of the said Hill Stations Building Rules shall have no effect. However, the remaining provisions in these Building Rules relating to structural safety, sanitation, etc., are applicable within the notified hill station areas.
(2) In Heritage Towns/Cities Considering the need for conservation of the notified Heritage Towns/Cities, G.O. have been issued listing the Heritage Towns/Cities and certain rules for regulation of developments therein. The provisions of these revised Building Rules not in consistent with the provisions of the said special rules for Heritage Towns/Cities shall have no effect. However, the remaining provisions in these Building Rules are applicable within the notified Heritage Towns/Cities
(27) Requirement for site approval
(1) No piece of land shall be used as a site for the construction of a building for any development, if the Competent Authority considers that:
a) the site is near a water body or a water course and the proposed development is likely to contaminate the said water body or water course (or)
b) the site is likely to be inundated and satisfactory arrangement for proper drainage is not possible
c) the site is a filled up tank or low lying or of made up of soil by depositing rubbish or offensive matters and the proposal is likely to be affected by dampness owing to the sub-soil water, unless ameliorative measures to the satisfaction of the Executive Authority are provided (or)
d) the site does not abut any existing public or private street forming part of a Layout sanctioned under the provisions of the relevant Local Body Act, conforming to the minimum width prescribed for various uses in these regulations.
(2) Minimum extent, plot frontage and site dimensions under these regulations shall not apply to the sites existed as such, and put to use prior to 5.8.1975 in case of CMA and the date on which the publication of notification of Master Plan in the Tamil Nadu Government Gazette for rest of the State [i.e. date of coming into force of these rules] evidenced by registered sale deeds and other documents, provided that the then existing activities continue in cases of other than residential activities. Further the said parameters shall not apply to the vacant plot/site for residential use subdivided and registered prior to the said cutoff date.
(3) Reconstitution Deed: If a development is proposed in more than one plot / site proposing amalgamation or reconstitution of the individual sites into one site, then
a) Reconstitution Deed in the format and manner prescribed by the Executive Authority shall be furnished by the applicant, and
b) The proposed building shall fall on the dividing line of the plot / site, such that the individual plot / site is not recognizable as a separate entity after execution of the proposed development there on.
ii) Provided that the sub-regulation (b) above shall not apply to amalgamation of a plot / site to serve as access / passage;
iii) Provided further that the above sub-regulations (i) and (ii)shall not apply to sub-division and layout applications where building proposals are not involved.
(28) Structures in setback spaces
(1) Unless or otherwise specifically provided for elsewhere in these regulations, no structure shall be constructed within the minimum prescribed set back spaces except the following:
a) In cases of non High Rise buildings
A. Unsupported sunshade, wardrobes, balconies, and other projections from the main walls, so long as such structures do not fall within the minimum required set-back spaces, more than what is prescribed below:
||Non continuous wardrobes or built- in cup boards in the upper floors above ground floor
||Open non-continuous balconies (above ground floor)
||Open service verandah to kitchen (above ground floor)
||Architectural projections above ground floor
||Staircase open landing projections (not affecting driveway)
||Cantilevered portico so long as it does not fall within 1.5m from the street alignment or boundary of the site whichever is closer.
For the items (iii) to (vi) above, there shall be a minimum clearance of 0.5m for Non High Rise Buildings with height upto 9.0m. and 1.50m for Non High Rise Buildings with height more than 9.0m upto 17.25m. from the property boundary (or street alignment, whichever closer) Provided, further that if non- continuous projecting structures stated above in the setbacks exceed 50% of the side/length of the building, then they shall be taken as forming part of the main building, and shall not be allowed in the minimum prescribed setback spaces.
B. Motor room of area not exceeding 2 sq.m. each and height not exceeding 1.8m, without affecting parking and driveway requirements.
b) In case of Non High Rise Buildings with height upto 9.0m, open single flight or spiral staircase or open double flight staircase so long as such structure do not fall within 0.50 m from the side boundary or 1 m. from the rear or front boundary of the site or street alignment.
c) A compound wall of height not exceeding 2.0m
d) Watchman booth not exceeding 2.5m.x 2.5m. in size at each gate and height not exceeding 3 m.
e) Gate pillars without or with arches with a min. headroom clearance of 5.50m available atleast to a width of 3.5m.
f) Meter Rooms for meter boxes / electrical panels along the boundary wall or external walls of the building with the projections not exceeding 0.60 meter from the abutting walls and the open Transformer without affecting parking and drive way, subject to the safety measures stipulated by TNEB.
g) In case of Hospital Buildings with Ground Floor/Stilt Floor+First Floor and above and floor area exceeding 300 sq.m. in each floor, the set back area shall be free of any obstruction such as fountains, statures, flower pots, decorative idols, ramps er., to facilitate, movement of vehicle and people during emergency.
i. Any wardrobe or staircase projection stated above is countable for coverage and FSI computation.
ii. In order to minimise traffic conflicts on to the abutting roads, the number of vehicular entry /exits to site shall be kept minimum and it shall not exceed 2 numbers (i.e. one entry / one exit); Provided that an additional gate for every 50 metres frontage may be allowed in large sites where its frontage exceeds 50 metres.
(29) Spaces excluded from FSI and Coverage Computation
The following shall not be counted towards FSI and plot coverage computation:
(1) In the terrace above the top most storey, areas covered by stair-case rooms and lift rooms and passages thereto, architectural features, elevated tanks (provided its height below the tank from the floor does not exceed 1.5 metre) and WC (with floor area not exceeding 10 sq.m)
(2) Staircase and lift rooms and passage thereto in the stilt parking floor
(3) Lift wells in all the floors
(4) Area of fire escape staircases and cantilever fire escape passages.
(5) Area of the basement floor / floors used for parking
(6) Area of the stilt parking floor provided its clear height (between lower floor and the bottom of the roof beam) does not exceed 3.0m and it is open on sides, and used for parking. In cases where upper floor/floors over a stilt parking floor is / are proposed for parking to satisfy the minimum number of parking required as per the Development Regulations.
(7) Area of structures exclusively for accommodating machineries for water treatment plant and effluent treatment plant proposed
(8) Areas covered by service ducts, and garbage shaft chimneys in industries
(9) Porches /Canopies / Porticos
(10) Service floor with height not exceeding 1.8 metres and fire check floor as prescribed in Rule No. 28(10) iv
(11) The following services and incidental structures necessary to the principal use subject to a maximum of 10 percent of the total floor area.
(a) Area of one office room for co-operative housing society or apartment/ building owners association in each block
(b) Servants/drivers bath room and water closet for each block in cases of Special buildings, Group developments, and Multi-storeyed Buildings at ground floor /stilt parking floor
(c) Gymnasium of 150sq.m in floor area
(d) Area covered by
(i) Meter room in ground floor or stilt parking floor (ii) Air-conditioning plant room in basement or ground floor
(iii) Electrical Transformer room (conforming to rule no.34) in Ground floor or Stilt parking floor
(iv) Watchman or caretaker booth/room in ground floor / stilt parking floor
(v) Pump room in Ground floor or stilt parking floor.
(vi) Generator room with machineries erected at 1.3m above ground floor or stilt floor.
(vii) Lumber room in basement floor or ground floor.
(viii) AHU in all the floors.
(ix) Electrical /switch gear rooms in all the floors.
(e) Area of one room for separate letterboxes in ground floor of residential and commercial multi-storeyed buildings, Special buildings, Group developments.
(13) Area covered by ramps in Hospital Buildings with Ground Floor/Stilt Floor+First Floor and above and floor area exceeding 300 sq.m. in each floor
(14) In High Rise Buildings Refuge Area not exceeding 4% of the habitable floor area as prescribed in Rule 28(10) v
(15) Area of structures proposed exclusively for, accommodating machineries for water treatment plant and effluent treatment plant.
(16) Features that do not constitute covered area will not be considered for computation of FSI.
(30) Area of special character:
[a] Continuous Building Areas (CBA):
Buildings without side set back are permissible in a plot / site in continuous building areas set apart in the approved Master Plan / DDP or in the other areas as may be declared by the local body as CB
A with the approval of the DTCP / Government as the case may be from time to time. However in an approved layout area only in the plots classified for Continuous type of buildings it is permissible.
(b) Economically weaker section areas (EWS)
Areas declared as slum by Tamil Nadu Slum Clearance Board (TNSCB) are categorised as EWS areas for the purpose of these regulations. In addition it includes the areas developed as EWS plot in the Tamil Nadu Housing Board (TNHB) neighbourhood schemes, Sites and Services schemes, slum improvement schemes and approved layouts. For the purpose of application of these rules the Local body may declare areas as EWS Areas by council resolution and notify from time to time.
(c) CRZ area:
The coastal stretches of seas, bays which are influenced by tidal action in the landward side up to 500 metres from the high tide line (HTL) and estuaries, creeks, rivers and back waters which are influenced by tidal action in the landward side up to 100 metres from the high tide line (HTL) and the land between the low tide line (LTL) and the high tide line (HTL) have been declared as Coastal Regulation Zone (CRZ).
The categorisation of CRZ is given in the Coastal Zone Management Plans approved and notified by the Government of India. Developments in these areas shall be regulated with reference to the CRZ classifications and the regulations notified by the Government of India from time to time under section 3 of the Environment (protection) Act, 1986.
(d) Conservation zones in the Heritage Towns: Government may notify Heritage Towns, a list of Heritage precincts there in (with metes and bounds) and conservation zones around such listed Heritage precincts. Any new construction of building / use of premises in the conservation zones shall conform to the special guidelines relating to height, use etc., prescribed and notified by the Government from time to time.
(e) Transit Oriented Development areas: In order to encourage Transit sensitive activities and to allow densifications in any mass rapid transit system in the state, the Govt. may prescribe such regulations, as may be necessary from time to time.
(f) Natural hazard prone areas:
Areas likely to have
(i) moderate to very high damage risk zone of earth quakes, or
(ii) moderate to very high damage by cyclones, or
(iii) significant flood flow or inundation, or
(iv) land slides proneness or potential, or
(v) tsunami proneness, or
(vi) one or more of this hazards, have been declared as natural hazard prone areas. Whole of Chennai Metropolitan Area falls in this natural hazard prone areas classification. Structural design and aspects of the building constructions in the Chennai City, Municipalities, and Panchayats shall also take into account of the special provisions contained in the Building Rules under the Chennai City Municipal Corporation Act, Building Rules under the T.N. District Municipalities Act and Building Rules under T.N. Panchayats Act respectively relating the regulations for natural hazard prone areas.
(31) Boundaries of land use zones:
(1) The different land use zones are located and bounded as shown in the land use plans.
(2) Variations: For updated information on variations of Land Use made under section 32(4) of the Act and published subsequent to approval of the Master Plan/Detailed Development Plan.
(32) Regulations to over ride other Rules and Regulations
In the application of these regulations, if there is conflict between the provisions under these regulations and the requirements under rules related to local bodies viz., Tamil Nadu District Municipalities Building Rules, Tamil Nadu Panchayat Building Rules and Multi-storeyed and Public Building Rules for the time being in force, then the provisions in the above mentioned Rules shall stand suspended to the extent of the conflict with these Regulations.
(33) Zoning Regulations
The Zoning Regulations shall comprise of Residential use zone, Commercial use zone, Industrial use zone, Special & Hazardous use zone, Institutional use zone, Open Space and Recreational use zone, Urbanisable use zone and Agricultural use zone and the activities permissible in each use zone are provided in Annexure XVII.
(34) Planning Parameters for Non High Rise Buildings
1) All Buildings not exceeding stilt + 5 floors upto 17.25m. in height
(i) The minimum road width, FSI, set back etc. for Non High Rise buildings shall be regulated according to the table below:
||Continuous Building Areas
||Minimum road width
||Heigm of the building - Minimum road width
|Upto 9.0m - 6.0m.
More than 9.0m. - 9.0m.
If the site does not directly abut a public road but gains access through a private exclusive passage or through a part of the plot which can be treated as a passage from a public road of minimum width as prescribed above, the minimum width of such passage shall be the same as width of the road as prescribed above.
||Minimum Set back
||Where Street Alignment/new road is prescribed, it shall be from that street alignment/ new road line. In the case of others, it shall be from the property boundary.
||Front set back
||Abutting road width - Front set back
|Upto 9.0m. - 1.5m
More than 9.0m. - 3.0m.
More than 18m. - 4.5m.
|More than 30.5m. - 6.0m.
||Side Set back
||Height of the building
|Upto 6 m.
|More than 6m. upto 9m
|More than 9m. upto 12m.
|More than 12m. upto 15.0m.
|More than 15m. upto 17.25m.
||Rear Set back
||Height of the building
|Upto 6 m
|More than 6m. upto 9m.
|More than 9m. upto 12m.
|More than 12m. upto 15.0m.
|More than 15m. upto 17.25m.
Explanation: Road width means the road space as defined in Rule 2(103). The qualifying road width for permitting non High Rise buildings with more than 9.0m. height upto 17.25m. shall be available atleast for a stretch of 250m. along the length of the road abutting the site and the stretch from a junction can be straight or a curve or zigzag or combination of the above.
(i) In the event of more than one block on Non High Rise Building in a site, then the distance between one block to another shall be 6.0m.
(ii) In CBA, there shall be atleast 1m wide internal passage from rear to front in ground level /ground floor, directly accessible to road
(iii) The minimum road width for conference halls and multi storeyed parking lots shall be 12.0m. For Community / Kalyana mandapams / Exhibition Hall shall be 15.0m. For cinema theatres, star hotels and multiplex / Malls shall be 18.0m.
(iv) For public buildings such as Kalyana mandapamsm assembly halls, exhibition halls, hospitals, nursing homes, hotels, lodging houses, cinema theatres, multiplex / malls etc. set back all around shall not be less than 6.0m.
(2) Structures permissible in the minimum prescribed set back spaces are given in the rule no.28.
(3) The minimum width of corridor shall be as given in rule no.41.
(4) Parking spaces shall be provided within the site conforming to standards prescribed in the Annexure IV.
(5) Rainwater harvesting provisions as prescribed in the rule no.67 shall be provided.
(6) Special regulations for physically disabled stated in the rule no.42 shall be adhered to.
(7) Solar energy capture provisions as prescribed in the rule no.43 shall be provided where applicable.
(8) The reservation of land for community recreational purposes such as park or play ground required in these regulations shall be as given in the rule no.40.
(9) Internal vehicular access way including passage if any within the site shall a clear width of 7.2 m and such vehicular access shall be available for every building block in the site within a distance of 50 metres. Further, it shall be a clear open to sky and no projection of structure over it is permissible.
(10) If the building is constructed on stilts and the stilt floor is to be used for parking, the minimum clear height of the floor (between the lower floor and the bottom of the beam) shall not exceed 3m and it shall not be enclosed for use as garages; if it is enclosed it shall be counted for FSI and number of floors for the purpose of defining Non High Rise building / High Rise building.
(11) Every Non High Rise building development exceeding 900 sq.m in floor area shall be provided with electrical room in ground floor or open space at ground level within the premises to accommodate electrical transformer conforming to the Regulations detailed in rule no.44.
(12) If a Non High Rise building contains more than one use and the allowability of the built space with reference to the abutting road width and exclusive passage width shall be decided based on the number of dwellings for the residential use and equivalent floor area allowable for commercial and other uses.
(13) Vehicular ramp in setback spaces around a special building may be permitted subject to the condition that the clearance of the proposed ramp from the property boundary / street alignment shall be minimum 1.5 metres and a clear motorable driveway of min. 3.5 m. in width is available around the building.
(14) The structures incidental to the main activities such as water closet / pump room, transformer room, transformer yard, electrical room shall not be construed as individual blocks for the purpose of these rules. However, these structures may be permitted in the prescribed set back space provided that they do not fall in the drive way and height does not exceed 4 metres and provided further that electrical transformer rooms with floor area does not exceed 25 sq.m. and W.C and Pump room per block does not exceed 6 sq.m.
(15) In areas where sewage system provided by the Local body concerned is not available and
a) where number of dwelling units exceeds 50 nos. or 2500 sq.m. of commercial area (for this purpose 50 sq.m. is equated to one dwelling unit) sewage treatment plant shall be provided and maintained for the disposal of the sewage within the site itself as per the designs approved by TWAD.
b) where number of dwelling units is less than 50 nos. or 2500 sq.m. of commercial area, septic tank with up-flow filters shall be provided and maintained for the disposal of the sewage within the site itself.
(16) Any construction with roof over it in the terrace floor for A.C. Plant/structures shall be counted, as a floor and categorization of type of building shall be done accordingly.
(17) In cases where the extent of the site where residential or predominantly residential developments proposed exceeds 10000 sq.m. (1 hectare), the developer shall reserve minimum ten per cent of the site area (excluding roads if any handed over to local body) and provide housing thereon for lower income groups with dwelling units not exceeding 45 sq. metres in floor area each, either within the site proposed for special building development or in a location within a radius of 2 k.m. from the site under reference. The developer or owner shall sell these small dwellings only for this purpose. No conversion or amalgamation shall be permissible in these cases of lower income group dwellings at any point of time.
(18) In residential / predominantly residential developments with dwelling units exceeding 100 in number, the design should include waste management infrastructure and atleast a closed non polluting storage provision for solid waste storage within the premises preferably with direct access from the abutting road shall be provided so that the local body can collect this stored waste from it.
(19) In residential/predominantly residential developments, provision for atleast one, bath room and water closet shall be provided for the use of servants/drivers, for each block not exceeding 25 Dwelling units.
(20) The space set apart and notified for formation of a new road or road widening / street alignment shall be transferred to the Local Body through a registered Gift Deed before actual issuance of Building Permit. The exact mode of conveyance of the land shall be consistent with the relevant enactment and regulations. In such cases 'Transfer of Development Rights' (TDR) provisions of the rule no. 46 shall be applicable.
(21) Basement Floor: -
a) The height of basement floor shall not exceed 1.2 metres above ground level and the headroom shall be minimum 2.4 metres.
b) No part of the basement shall be constructed in the minimum required set back spaces, required for the movement of fire fighting vehicles/equipments.
c) In cases where second basement is proposed for parking and incidental uses, sufficient provision for lighting and ventilation and also for protection from fire to the satisfaction of Directorate of Fire and Rescue Services shall be made.
d) During the construction of the basement floor, it shall be the sole responsibility of the Building Permit holder to ensure that the building / structure in the adjoining sites are not weakened / damaged.
(22) Security Deposit: The applicant (not being a Government department / agency) shall deposit a sum at the rate of 50% of the infrastructure and amenity charges in force per square metre of floor area as a refundable non-interest earning security and earnest deposit. The deposit shall be refunded on completion of development as per the approved plan as certified by Executive Authority of the Local body; if not, it would be forfeited.
(23) Display Board:
a) The details of the development for which planning permission is issued, shall be displayed in the site in the format as prescribed in Rule 10(8) of these regulations.
b) The applicant (not being a Government department / agency) shall pay a sum of Rs. 10,000/- (Rupees ten thousand only) as earnest money non interest bearing refundable deposit and same should be utilized for the purpose of installing the display board as prescribed in Rule 10(8) on the site by Local body, in the event of the applicant not fulfilling the conditions stated in (a) above.
c) If the applicant fulfills the conditions (a) above, the deposit shall be refunded after production of the completion certificate.
(24) Notwithstanding anything stated above, developments for promoting affordable housing shall be regulated according to the provisions as stipulated in Annexure XXII.
(35) Planning Parameters of Industries
The road width, FSI, Setbacks etc. for cottage industries, Green industries, Orange industries and Red industries shall be regulated according to the table below:
(Detailed list of these industries given in Annexure V, VI and VII)
||Category of industries
||Green & Orange industr ies
||Red industries (Special & Hazardous)
||Minimum road width
||Where Street Alignment/new road is prescribed, it shall be from that street alignment/new road line. In the case of others, it shall be from the property boundary.
|| Abutting road width
|Up to 9m
|9m. to 18m.
|18m. to 30.50m.
|More than 30.5m.
||Structures permissible in the minimum prescribed Front set back, Side setback and Rear set back are given in the rule no.28 In addition, incidental structures such as Gate pillars, servant room, watch man booth, cycle stand and toilets with height not exceeding 4m are permissible in these minimum prescribed setback spaces.
||Parking spaces shall be provided within the site conforming to standards prescribed in the Annexure IV.
||Rainwater harvesting provisions as prescribed in the rule no.47 shall be provided.
(36) Planning Parameters of Institutional Buildings
i) Including nursery schools, Primary schools and religious buildings with floor area exceeding 300 sq.m. Secondary schools, Colleges, Higher Educational, Technical & Research Institutions, Students hostels & Dormitories, Research Institutions, Broadcasting, Telecasting & Telecommunication centers, Government & Quasi Government Offices, and Institutions, Government Archives, Museums, Art galleries and Public libraries, Foreign Missions, Consulates and Embassies.
||Continuous Building Areas
||Minimum road width
||Minimum 7.2m for schools upto higher secondary level and industrial training institutes. For others, min. 9 m
||Where Street Alignment/new road is prescribed, it shall be from that street alignment/narrow line. In the case of others, it shall be from the property boundary
|For schools - 2m
|For schools - 2m
||Structures permissible in the minimum prescribed Front set back, Side setback and Rear set back are given in the regulations No. 28 In addition, Gate pillars, gopurams, and incidental structures (with height not exceeding 4m) such as servant room, cloak room, and watch man booth, cycle stand, Kitchen and toilets are permissible in these minimum prescribed setback spaces.
||Parking spaces shall be provided within the site conforming to standards prescribed in the Annexure IV
||Rainwater harvesting provisions as prescribed in the rule no.61 shall be provided.
||The minimum width of corridor shall be as given in rule no.41
||Special regulations for physically disabled stated in the rule no.42 shall be adhered to.
||The applicant not being a government department or agency shall deposit a sum at the rate of 50% of the infrastructure and amenity charges as a refundable non-interest earning security and earnest deposit. The deposit shall be refunded on completion of development as per the approved plan as certified by Executive Authority of the Local Body; if not, it would be forfeited
(i) In CBA, there shall be atleast 1m wide internal passage from rear to front in ground level / ground floor, directly accessible to road.
(ii) In cases of Government and Quasi-Government hospital buildings an additional FSI of 0.25 is allowable over and above the normally permissible FSI.
(iii) In the case of schools, the development shall confirm to the additional safety standards stated in the Annexure XV.
(37) Planning Parameters of Transport Terminals:
||Minimum road width
||9 metres except for container terminals where it shall be 18m
||Maximum Plot coverage
||6m on either side
||a) Structures permissible in the minimum prescribed Front set back, Side setback and Rear set back are given in the rule no.28 b) In additions, incidental structures such as gate pillars, servant room, watch man booth, cycle stand, kitchen and toilets with height not exceeding 4m are permissible in these minimum prescribed setback spaces.
||Parking: 10% of the extent of the site shall be reserved for parking in the part of site carved out in a regular shape preferably with frontage abutting the road.
||Rainwater harvesting provisions as prescribed in the rule no.61 .shall be provided
||Special regulations for physically disabled stated in the rule no.42 shall be adhered to.
(38) Special rules for High Rise Buildings
(1) Areas set apart for High Rise building developments in Chennai Metropolitan Area are given in the Annexure XX. In rest of the State, High Rise buildings are permissible except in areas specifically declared as prohibited area for construction of Multi-Storeyed buildings in the Master Plan/Detailed Development Plan or as may be declared by the local body in other areas with the approval of the DTCP/Government from time to time.
(2) (a) Site Extent:- The extent of site for construction of High Rise buildings shall not be less than 1200 square metres.
(b) Road width:- The site shall either abut on a road not less than 18 metres in width or gain access from public road not less than18 metres in width through a part of the site which can be treated as an exclusive passage of not less than 18 metres in width.
Provided further that High Rise building may be permitted with limitations on maximum FSI and maximum height of the building on a site abutting or gaining access from a public road of min. 12 m/15 m in width, or gain access from public road not less than 12 m/15 metres in width through an exclusive passage of not less than 12 m/15 metres in width, subject to compliance of the planning parameters stated in the Table under sub rule (2) below.
Explanation: Road width means the road space as defined in rule no.2 (103). The qualifying road width for permitting multi-storeyed building shall be available atleast for a stretch of 500m along the length of the road abutting the site and the stretch from a junction can be straight or a curve or zigzag or combination of the above.
(2) The extent of the site, FSI, Set back etc. for Multi- storeyed Building in CMA shall be regulated according to the table below:
||Minimum Plot extent
||Min. Road width
||Minimum set back all around
||Height of the building above ground level
||Minimum required setback space from the property boundary
||For every increase in height of 6m. or par thereof above 30m. minimum extent of set back space to be left additionally shall be one metre.
||Spacing between blocks in case of more than one block of High Rise building
||Height of the building above ground level
||Minimum required spacing between blocks
||For every increase in height of 6m. or par thereof above 30m. space to be left additionally shall be one metre.
Explanation: - i. In cases of hospital buildings an additional FSI of 0.25 is allowable over and above the normally permissible FSI. ii. In the cases where street alignment has been prescribed, the front open space shall be left from the street alignment. provided that the developer or promoter or owner shall not sell these dwellings for other than the said purpose and no conversion or amalgamation shall be permissible in these cases of Lower Income Group Dwellings.
(3) a) The space specified above shall be kept open to sky and free from any erection / projection (such as sunshade / balcony) of any building other than a fence or compound wall provided that these open yards may be used for the provision of access ways to the building’s parking facilities.
b) A watchman or caretaker booth or Kiosk not exceeding 2.5m.x 2.5m. in size at each gate and not exceeding 3 m. in height, or power /transformer room not exceeding 4 m. in height shall be permitted in the set back space at ground level after leaving 7 metres clear set back from the main structure. Provided that the height restriction shall not apply for an open transformer.
c) Gate pillars without or with arches with a min. headroom clearance of 5.50m atleast to a width of 3.5m. may be permitted in the set back space after leaving 7 metres clear set back from the main structure.
(4) Parking and Parking facilities:
For the use of the occupants and of persons visiting the premises for the purposes of profession, trade, business, recreation or any other activity parking spaces and parking facilities shall be provided within the site to the satisfaction of the Competent Authority and conforming to standards prescribed in the Annexure IV.
(5) Vehicular access within the site: Internal vehicular access way including passage if any within the site shall have a clear width of 7.2 m. and such vehicular access way shall be available for every building block in the site. Further, it shall be a clear width open to sky and no projection in structure over it is permissible.
(6) Corridor width: - The corridor serving as access for units in the development in whichever floor they may be situated shall not be less than the standards prescribed in Rule No. 41.
(7) Basement Floor: -
(a) The height of basement floor shall not exceed 1.2 metres above ground level and the headroom shall be minimum 2.4 metres.
(b) No part of the basement shall be constructed in the minimum required set back spaces required for the movement of snorkel.
(c) In cases where second basement is proposed for parking and incidental uses, sufficient provision for lighting and ventilation and also for protection from fire to the satisfaction of Directorate of Fire and Rescue Services shall be made.
(d) During the construction of the basement floor, it shall be the sole responsibility of the Building Permit holder to ensure that the building / structure in the adjoining sites are not weakened / damaged.
(8) The reservation of land for community recreational purposes such as park or play ground required in these regulations shall be as given in the Rule No.40.
(9) Conformance to National Building Code of India: -
(a) In so far as the determination of sufficiency of all aspects of structural designs, building services, plumbing, fire protections, construction practice and safety are concerned the specifications, standards and code of practices recommended in the National Building Code of India 2016 shall be fully confirmed to and any breach thereof shall be deemed to be a breach of the requirements under these rules.
(b) Every High Rise Building erected shall be provided with
i. lifts as prescribed in National Building Code
ii. a stand-by electric generator of adequate capacity for running lift and water pump, and a room to accommodate the generator;iii. an electrical room confirming to the rule no.42; and iv. at least one metre room of size 2.4 metres by 2.4 metres for every 10 consumers or 3 floor whichever is less. The metre room shall be provided in the ground floor.
(10) Fire safety, detection and extinguishing systems:
i. All building in their design and construction shall be such as to contribute to and ensure individually and collectively and the safety of life from fire, smoke, fumes and also panic arising from these or similar other causes.
ii. In building of such size, arrangement or occupancy that a fire may not itself provide adequate warning to occupants, automatic fire detecting and alarming facilities shall be provided where necessary to warn occupants or the existence of fires, so that they may escape, or to facilitate the orderly conduct of fire exit drills.
iii. Fire protecting and extinguishing system shall conform to accepted standards and shall be installed in accordance with good practice as recommended in the National Building Code of India, 2016 (amended from time to time) and to the satisfaction of the Director of Fire and Rescue Services by obtaining a no objection certificate from him.
iv. Fire check Floor: Each block of Multi-Storeyed Buildings, whose height exceeds 75m, shall keep one floor for every 45 metre level from the ground level as fully vacant without any partition walls. This floor may be used for development of gardens and sit outs and to be used as a refuge / buffer area in case of fire or other emergencies in addition to the normally required area for refuge under these regulations. The height of the Fire check floor shall be not more than 2.4 m. The exterior wall of the floor shall only be the parapet wall of 1m height. for safety purposes, the gap between the parapet wall and roof slab may be covered with glass, which can be broken with some bang/force enabling evacuation of people during emergency rescue operations. Fire drenchers shall be provided at the periphery of each such floor externally. This floor area shall not be considered for computation of FSI.
(11) High Rise Building Improvement charge: – The cost of laying / improvements to the systems in respect of road / water supply, sewerage / drainage / electric power supply that may be required as assessed by the concerned authority, such as Local body, Tamil Nadu Electricity Board shall be borne by the applicant.
(12) Security deposits: – The applicant (not being a Government department / agency) shall deposit a sum at the rate of 50% of the infrastructure and amenity charges in force per square metres of floor area as a refundable non-interest earning security and earnest deposit. The deposit shall be refunded on completion of development as per the approved plan as certified by the Competent Authority; if not, it would be forfeited.
(13) Display Board: -
(a) The details of the development for which planning permission is issued, shall be displayed in the site in the format prescribed in Rule 10(8) of these regulations.
(b) The applicant (not being a Government department / agency) shall pay a sum of Rs. 10,000/- (Rupees ten thousand only) as earnest money noninterest bearing refundable deposit and same should be utilized for the purpose of installing the prescribed size board on the site by Local Body, in the event of the applicant not fulfilling the conditions stated in (a) above. If the applicant fulfills the conditions (a) above, the deposit shall be refunded after production of the completion certificate.
(14) In areas where sewage system provided by the Local body concerned is not available and
(a) where number of dwelling units exceeds 50 nos. or 2500 sq.m. of commercial area (for this purpose 50 sq.m. is equated to one dwelling unit) sewage treatment plant shall be provided and maintained for the disposal of the sewage within the site itself as per the designs approved by TWAD.
(b) where number of dwelling units is less than 50 nos. or 2500 sq.m. of commercial area, septic tank with up-flow filters shall be provided and maintained for the disposal of the sewage within the site itself .
(15) In cases where the extent of the site where residential or predominantly residential developments proposed exceeds 10000 sq.m. (1 hectare), the developer shall reserve minimum ten per cent of the site area (excluding roads if any handed over to local body) and provide housing thereon for lower income groups with dwelling units not exceeding 45 sq.metres in floor area each, either within the site proposed for MSB development or in a location within a radius of 2 k.m. from the site under reference. The developer or promoter or owner shall sell these small dwellings only for this purpose. No conversion or amalgamation shall be permissible in these cases of lower income group dwellings at any point of time.
(16) In residential / predominantly residential developments with dwelling units exceeding 100 in number, the design should include waste management infrastructure and atleast a closed non polluting storage provision for solid waste storage within the premises preferably with direct access from the abutting road shall be provided so that the local body can collect this stored waste from it.
(17) In residential/predominantly residential developments, provision for atleast one, bath room and water closet shall be provided for the use of servants/drivers for each block not exceeding 25 Dwelling units.
(18) In the interest of the public for better circulation in the area and also to ensure that the proposed development does not block access to the properties around, in cases of large developments where link roads have to be provided for connectivity to the adjoining lands areas, through the site applied for development, the Competent Authority reserves the right to insist the applicant to set apart such road spaces within the site and the applicant shall hand over the same free of cost through a registered gift deed to the Local body for declaring it as public road. In such cases set back from these roads to the buildings proposed shall be provided as prescribed in these rules.
(19) The space set apart and notified for formation of a new road or road widening / street alignment shall be transferred to the Local Body through a registered Gift Deed before actual issuance of planning permission. The exact mode of conveyance of the land shall be consistent with the relevant enactment and regulations In such cases 'Transfer of Development Rights' (TDR) provisions of the rule no. 46 are applicable.
(20) Rain water harvesting provisions as prescribed in the regulations given in rule no.61 shall be provided.
(21) Solar energy capture provisions as prescribed in the regulations given in rule no.43 shall be provided where applicable.
(22) Special regulations for physically disabled stated in the regulations given in rule no.42 shall be adhered to.
 In case of schools, the development shall confirm to the additional safety standards stated in the Annexure XXXII.
 Notwithstanding anything stated above, developments for promoting affordable housing shall be regulated according to the provisions as stipulated in Annexure XXII.
(39) Rules for Information Technology developments availing additional FSI benefits
The development of land and building for the purpose of development of Information Technology Park, Software and its associated, Computer technology, Bio-Informatics units shall be certified by the appropriate authority designated by the Government for the purpose, to avail the concessions stated below.
(1) Areas: The proposed Information Technology development is permissible in the Local body Area, subject to the provision of adequate water supply and sewage disposal arrangements to the satisfaction of the Local body.
(2) Activities: Manufacture of hardware, development of software and its associated computer - communication technology applications, bio-informatics units including offices, conference halls and projection theatres connected there with, only shall be permitted. No showrooms, other offices, residential uses and activities of similar nature shall be permitted. Provided that incidental activities such as staff canteen, staff recreational area, guest accommodation, watchmen quarters, and the like not exceeding 10% of the total floor area shall be permitted. Provided further that within above ceiling of 10%, each of the above incidental activities should not exceed 5% of the total floor area.
(3) Road width: The proposed development shall either abut on a public road of not less than 18 metres in width or gain access from a passage of not less than 18 metres width which connects to a public road of not less than 18 metres width.
(4) Site extent: The site extent shall not be less than 1200 Sq.m.
(a) For non-High Rise buildings, it shall be in conformity with the requirements prescribed in these Rules.
(b) For High Rise Buildings, maximum permissible height shall be 60 metres where the width of the abutting road is minimum 18 metres, and exceeding 60 metres where the width of abutting road is minimum 30.5 metres, subject to such conditions as may be necessary.
(6) Floor Space Index: Maximum Floor Space Index allowable is 1.5 times of the Floor Space Index ordinarily permissible
(7) Caution Deposit:
a. Caution Deposit to be made by the applicant (not being a Government department / agency) before issue of Building Permission shall be 10% of the guideline value of the land or 20% of the Guideline Value of the land area equal to which the additional floor area is availed, whichever is higher. The caution deposit is acceptable in the form of an irrevocable Bank Guarantee issued in the format prescribed, in favour of the Executive Authority of Local Body from any scheduled bank
b. The Bank Guarantee shall be kept alive till a final decision is taken by the Executive Authority of Local Body.
c. The Bank Guarantee towards caution deposit is returnable after a period of five years, from complete occupation and commencement of commercial operation subject to confirmation by a certificate from the appropriate authority (ELCOT) certifying that the building is put into continuous use for IT parks/Bio Informatics units for the said five years.
d. If the building is utilised for any other purpose during this period and the occupancy confirmation certificate from the appropriate authority (ELCOT) is not furnished, the Bank Guarantee shall be invoked and the caution deposit shall be forfeited by transferring the same to the Executive Authority of Local Body’s account.
e. The caution deposit referred to above shall be different from, and over and above the security deposit to be paid in the normal course of issue of Building Permit.
f. The decision of the Executive Authority of Local Body is final in the invocation/release of Bank Guarantee.
(8) Car Parking Standards: The covered Car Parking space will be allowed up to Ground+3 floors above ground level and the same shall not be included in the floor space index/plot coverage.
(9) Other Parameters: Except for the above said specific provisions, the developments shall conform to these rules in respect of all other parameters.
(40) Reservation of land for community recreational purposes in cases of Non High Rise buildings/ High Rise building developments
(1) The reservation of land for community recreational purposes such as park / play ground shall be as given below at ground level in a shape and location abutting a public road to be specified by the competent authority:
|Extent of site
||For the first 3,000 square metres
||Between 3,000 square metres and 10,000 square metre
||10% of the area excluding roads or in the alternative he shall pay the market value of the equivalent land excluding the first 3000 sq.m. as per the valuation of the Registration Department, only where it is not possible to provide open space due to physical constraints. No such area reserved shall measure less than 100 square metres with a minimum dimension of 10 metres. The space so reserved shall be transferred to the Local body, free of cost, through a registered gift deed. In cases of residential developments, the local body concerned may permit the Residents Association or Flat Owner’s Association for maintaining such reserved space as park / playground
||Above 10,000 square metres
||Ten per cent of the area excluding road shall be reserved and this space shall be transferred to the local body designated by it, free of cost, through a gift deed. It is obligatory to reserve and hand over the space and no charge in lieu can be accepted in case of new developments or redevelopments.
(2) The site so reserved shall be exclusive of the set back spaces and spacing between blocks prescribed in these rules, and shall be free from any construction / structure.
(3) For the purpose of this regulation, existing development is defined as one where the extent of ground area covered by structures already existing (prior to application for Building Permit) is 25 per cent and above of the total site area.
(4) In case of additions to existing developments, where it is difficult to leave the 10 per cent area as open space for community recreational purposes, the Executive Authority of the Local Body reserves the right to collect the market value of equivalent land in lieu of the land to be reserved. However, if on a future date, the applicant wants to demolish the existing structures and raise new structures on the site in question, the community recreational space as per the rule shall be reserved.
(5) In the case of developments of Government departments / agencies, the Executive Authority of Local Body reserves the right to enforce the maintenance of such reserved lands by the department / agency to the satisfaction of the Local Body or order the department / agency to transfer the land to the local body free of cost.
(6) Structures for watchman’s booth, gardener’s instrument room, public toilet and police booth for the purpose of maintenance and toilets may be permitted with total floor area not exceeding 5 percent of the total OSR area in one place.
(7) Public parking lot may be permitted in basement below the OSR.
(8) Rain water harvesting water tanks and STP may be permitted below the OSR.
(9) The Executive Authority of Local Body reserves the right to decide on entrusting the maintenance work to any institution / individual on the merits of the case.
(41) Corridor / Verandah Width
The minimum width of corridor / verandah within buildings shall be as given below:
||Building use or type
||Minimum width of corridor / verandah
||Assembly buildings such as Auditoriums, Kalyanamandapams, cinema theatres, Religious buildings, temples, mosques or churches and other buildings of public assembly
||Educational Buildings such a schools, colleges, Research Institutions
||Commercial buildings such as private offices, Nursing Homes, etc.
||All other buildings including hotels
(42) Provisions for differently abled, elderly and children
In order to provide barrier free environment in the buildings and premises used by public the following should be provided:
(1) These regulations shall be applicable to all buildings and facilities used by the public such as educational, institutional, assembly, commercial, business, mercantile buildings and group housing constructed on plots having an area of more than 2000 sq.m. It shall not apply to private residential buildings.
(a) Types of buildings to adopt barrier free guidelines
(i) Buildings to be designed for Ambulant Disabled People
Higher Secondary School, Conference Hall, Dance Halls, Youth Centers, Youth Clubs, Sport Centers, Sport Pavilions, Boat Club Houses, Ice Rinks, Bowling Centers, Swimming Pools, Police Stations, Law Courts, Courts Houses, Sport Stadiums, Theaters, Concert Halls, Cinemas, Auditoria, Small Offices (the maximum plinth area 1400 sq.mt) Snack Bars, Cafes and banqueting rooms (for capacity above 50 dinners).
a. In sport stadiums provisions shall be made for non-ambulant spectators (small wheel chair)
b. @ 1:1000 up to 10,000 spectators and @ 1:2000 for spectators above 10,000.
c. In Theaters, Concert Halls, Cinemas and Auditoria provisions shall be made for nonambulant spectators (Small Wheel Chairs) @ 1/250 up to 1000 spectators and 1/500 for spectators above 1000.
(ii) Buildings to be designed for Non-Ambulant Disabled People
Schools for differently abled and other buildings as mentioned in Sec 16, Chapter 1 and along with Botanical Gardens, Religious Buildings, Elderly People Clubs, Village Halls, Day Centers, Junior Training Centers, Post Offices, Banks, Dispensaries, Railway Stations, Shops, Super Markets, and Departmental Stores.
Note: Large wheel chair criteria shall be applicable on ground floors of the following building, post offices, banks, dispensaries, railway station, shops, supermarkets, and departmental stores.
(iii) Buildings to be designed for Non-Ambulant People (using small wheel chairs)
Public lavatories in Tourist Sports, Clubs Motels, Professional and Scientific Institution, Museum, Art Galleries, Public Libraries, Laborites, Universities, College for further Education, Teachers Training Colleges, Technical College, Exhibition Halls Dentist Surgeries, Administrative Department of the Hospitals, Service Stations, Car Parking, Buildings Airports Terminals, Bus Terminals, Factories. Employing differently-abled for sedentary works, Large Offices, (with plinth area abode 1400 sq.mt.), Tax Offices, Passport Offices, Pension Offices, and Labour Offices, Cafes, Banqueting Rooms and Snack Bars (For capacity above 100 dinners).
(b) Site development
Level of the roads, access paths and parking areas shall be described in the plan along with specification of the materials.
Access Path / Walk Way Access path from plot entry and surface parking to building entrance shall be minimum of 1800 mm wide having even surface without any steps. Slope, if any, shall not have gradient greater than 5%. Selection of floor material shall be made suitably to attract or to guide visually impaired persons (limited to coloured floor material whose colour and brightness is conspicuously different from that of the surrounding floor material or the material that emits different sound to guide visually impaired persons; hereinafter referred “o as "guiding floor material". Finishes shall have a non- slip surface with a texture traversable by a wheel chair. Kerbs wherever provided should blend to a common level.
For parking of vehicles of differently-abled people, the following provisions shall apply:
(i) Surface parking for two car spaces shall be provided near entrance for the physically differently-abled persons with maximum travel distance of 30.0 m. from building entrance.
(ii) The width of parking bay shall be minimum 3.6 meter.
(iii) The information stating that the space is reserved for wheel chair users shall be conspicuously displayed.
(iv) Guiding floor materials shall be provided or a device, which guides visually impaired persons with audible signals, or other devices, which serves the same purpose, shall be provided.
(d) Building requirements
The specified facilities in buildings for differently abled persons shall be as follows:
(i) Approach to plinth level Every building should have at least one entrance accessible to the differently abled and shall be indicated by proper signage. This entrance shall be approached through a ramp together with the stepped entry.
(ii) Ramped Approach:
Ramp shall be finished with non-slip material to enter the building. Minimum width of ramp shall be 1800mm with maximum gradient 1:12. Length of ramp shall not exceed 9.0 meter having 800mm high hand rail on both sides extending 300mm beyond top and bottom of the ramp. Minimum gap from the adjacent wall to the hand rail shall be 50mm.
(iii) Stepped Approach:
For stepped approach size of tread shall not be less than 300mm and maximum riser shall be 150mm. Provision of 800mm high hand rail on both sides of the stepped approach similar to the ramped approach.
(iv) Exit/Entrance Door: Minimum & clear opening of the entrance door shall be 900mm and it shall not be provided with a step that obstructs the passage of a wheel chair user. Threshold shall not be raised more than 12mm.
(v) Entrance Landing: Entrance landing shall be provided adjacent to ramp with the minimum dimension 1800mm x 2000mm. The entrance landing that adjoins the top end of a slope shall be provided with floor materials to attract the attention of visually impaired person's (limited to coloured floor material whose colour and brightness is conspicuously different from that of the surrounding floor material or the material that emits different sound to guide visually impaired persons. Finishes shall have a non-slip surface with a texture traversable by a wheel chair. Kerbs wherever provided should blend to a common level.
(vi) Corridor connecting the entrance/ exit for the differently abled
The corridor connecting the entrance / exit for differently abled leading directly outdoors to a place where information concerning the overall use of the specified building can be provided to visually impaired persons either by a person or by signs, shall be provided as follows:
a) Guiding floor materials' shall be provided or device that emits sound to guide visually impaired persons.
b) The minimum width shall be 1500mm.
c) In case there is a difference of level, slope ways shall be provided with a slope of 1:12. d) Handrails shall be provided for ramps/slope ways.
(vii) Stair-ways One of the stair–ways - near the entrance / exit for the differently abled shall have the following provisions:
a) The minimum width shall be 1350 mm.
b) Height of the riser shall not be more than 150 mm and width of the tread 300mm.
c) The steps shall not have abrupt (square) nosing.
d) Maximum number of risers on a flight shall be limited to 12.
e) Handrails shall be provided on both sides and shall extend 300 mm on the top and bottom of each flight of steps.
(viii) Lifts Wherever lift is required as per bye-laws, provision of at least one lift shall be made for the wheel chair user with the following cage dimensions of lift recommended for passenger lift of 13 person’s capacity of NBC 2005, BIS. Section 4.9.3 Table no1- Desirable Lift size
Clear internal width 1100 mm Clear internal depth 2000 mm Entrance door width 900 mm
a) A hand rail not less than 600mm long at 1000mm above floor level shall be fixed adjacent to the control panel.
b) The lift lobby shall be of an inside measurement of 1800 mm x 2000 mm or more.
c) The time of an automatically closing door should be minimum 5 seconds and the closing speed should not exceed 0.25 m/ sec.
d) The interior of the cage shall be provided with a device that audibly indicates the floor, the cage has reached indicates that the door of the cage of entrance/exit is either open or closed.
e) Graphic/Braille signage, as per the Harmonized Guidelines, shall be provided in the lift lobby.
(ix) Toilets One special W.C. in a set of toilets shall be provided for the use of differently abled with essential provision of washbasin near the entrance for the differently abled.
a) The minimum size shall be 1500 mm x 1750 mm.
b) Minimum clear opening of the door shall be 900mm and the door shall swing out.
c) Suitable arrangement of vertical/horizontal handrails with 50mm clearance from wall shall be made in the toilet.
d) The W.C. seat shall be 500mm from the floor.
(x) Proper signage
a) Appropriate identification of specific facilities within a building for the differently abled persons should be done with proper signals.
b) Visually impaired persons make use of other senses such as hearing and touch to compensate for the lack of vision, whereas visual signals benefit those with hearing disabilities. Signs should be designed and located so that they are easily legible by using suitable letter size (not less than 20 mm high).
c) For visually impaired persons, information board in brail should be installed on the wall at a suitable height and it should be possible to approach them closely.
d) To ensure safe walking, there should not be any protruding sign which creates obstruction in walking.
e) Public Address System may also be provided in busy public areas.
f) The symbols/information should be in contrasting colour and properly illuminated because people with limited vision may be able to differentiate amongst primary colours.
g) International Symbol Mark for wheel chair be installed in a lift, toilet, staircase, parking areas, etc., that have been provided for the differently abled.
(43) Solar Energy Capture
Fitment of solar assisted water heating system –the requirements for fitment of solar assisted water heating system in buildings shall be in accordance with the following regulations.
1. (i) If the building is a High Rise Building
(ii). If the building is intended to be used as:-
(a) hospitals and nursing homes; exceeding 150 Square metres in floor area
(b) hotels, lodges and guest houses; exceeding 150 square metres in floor area
(c) hostels of Schools, Colleges, Training Centres;
(d) barracks of arms forces, paramilitary forces and police;
(e) individual residential buildings having more than 150 sq.m. plinth area
(f) functional buildings of railway stations and airports like waiting rooms, retiring rooms, rest rooms, inspection bungalows and catering units;
(g) community centres, banquet halls, Kalyana Mandapams and buildings for similar use; exceeding 200 square metres in floor area
(h) Industries wherein hot water is required for processing and
(i) Government buildings or quasi –government buildings wherein electric Geyser is used. In which there is a system or installation for supply hot water, a provision shall be made for an auxiliary solar assisted water heating system;
1. The Executive Authority before issuing Building permit for the construction of new building shall ensure if it has a provision in the building design itself for an insulated pipeline from the rooftop in the building to various distribution points where hot water is required. The new building shall have provision for continuous water supply to the solar water heating system. The new building shall also have open space on the rooftop to receive direct sun light. The load bearing capacity of the roof shall atleast be 50 kilogram per square meter. All new buildings shall have solar assisted water heating system installed before they are utilized for business or other activity.
2. In the existing building, solar assisted water heating system shall be installed at the time of change of use to any of the categories of building mentioned in item 1 above, provided there is a system or installation for supplying hot water therein.
3. The capacity of solar water assisted heating system to be installed on the building of different categories mentioned in item 1 above shall be decided in consultation with the Executive Authority. The recommended minimum capacity shall not be less than twenty five litres per person per day for each bath room and kitchen subject to the condition that maximum of 50 per cent of the total roof area is provided with the system as per norms to be fixed by the TEDA from time to time.
4. Installation of solar assisted water heating system shall conform to Bureau of Indian Standards specification Indian Standard 12933. The Technical specifications of solar water heating system shall conform to the specifications defined by Ministry of New and Renewable Energy, Government of India from time to time. The solar collectors used in the solar assisted water heating system shall have the Bureau of Indian Standards Certification mark.
5. Wherever hot water requirement is continuous in any building, auxiliary back up arrangement shall be provided.
(44) Electrical Transformer Rooms
Electrical rooms in Special building, Group development, and Multi-storeyed Building developments shall conform to the following:
(1) Tamil Nadu Electricity Board-TANGEDCO Standards:-
[a) Indoor space required within the premises for installing floor mounted distribution transformer and associated switchgear.
i. An electrical room for accommodating the transformers and associated switchgears shall be provided at the ground floor, either within the built up space of the buildings or outside the buildings and within the premises of the buildings nearer the main entrance of the building. The associated switchgear shall be separated from the transformer bays by a fire-resisting wall with a fire resistance of not less than 4 (four) hours.
ii. The width of the approach road to the above said electrical room shall not be less than 3.0 metres.
iii. The electrical room with RCC roof shall have clear floor area 6m. X 4m. with a vertical clearance of 2.75m.
iv. Three sides of this room shall be covered with brick walls. The fourth side, towards the approach road shall be covered with M.S. Rolling Grill Shutter of width not less than 3 metres with locking facility.
v. The electrical room shall be fitted with 2 Nos. exhaust fans in the wall facing the approach road, one on either side of the shutter.
vi. The electrical room shall have raised cement flooring with cable duct of 450-mm. width and 750-mm. depth, all around inside the room and close to the exterior walls shutters. The flooring shall slope towards the cable duct. The cabled duct shall be covered with RCC slabs of thickness not less than 75 mm. (3 inches). The covered slabs shall flush with the cement flooring. The radius of curvature of the cable ducts at the turnings inside the electrical room shall not be less than one metre.
(b) The open space within the premises for installation. A clear space of 10 m. x 4 m. or 5 m. x 5m. open to the sky and having an approach road of width not less than 3 metres, upto the public road shall be provided within the consumer premises, preferably at the main entrance.
(2) Directorate of Fire and Rescue Services Standards:
(i) No transformer shall be located below the first basement or above the ground floor
(ii) A sub-station or switch station with apparatus having more than 2000 litres oil shall not be allowed in the case of indoor transformer.
(iii) The indoor transformer should preferably be housed in a fireproof room with walls and doors sufficient fire rating.
(iv) The room in the ground floor of the basement housing the transformer shall have a free access to the outside.
(v) There shall be a curb or a dwarf wall around the transformer so that oil spills if any, is contained within the curb. There shall also be a suitable drain with a ' flame-arrester'
(vi) If in the basement, the transformers shall be adequately protected against fire by a high velocity water spray or a CO2 flooder of suitable capacity, depending upon the size of the transformer.
(vii) The switchgears, if any shall be housed in a separate room with suitable fire resistance walls.
[viii] The transformers shall be located only in the periphery of the basement or ground floor, observing suitable clearances.
[ix] DCP or CO2 portable fire extinguishers of a minimum capacity of 10 kg. shall be kept near the doorway housing the transformer.
[x] All indoor transformers shall be subjected to periodic inspection and shall be replaced in good time so that there is no fire risk.
[xi] The room shall be well ventilated so that the transformer remains cool.
[xii] The room shall have emergency and automatic lighting with independent power supply.
(45) Layout and sub-division regulations:
This rules seeks to ensure access to plots by way of roads and private passages, creating hierarchy of roads depending on the road length and intensity of developments in the area and also to provide adequate linkages to the existing roads and further to provide proper circulation pattern in the area, providing required recreational spaces such as parks / playgrounds, and providing spaces for common amenities such as schools, post and telegraph offices, fire stations, police stations etc.
(1) (a) The minimum width of the public street/road on which the site abuts or gains access shall be 7.2 m. for residential layout developments and 9m. for industrial layout developments. For subdivisions the minimum width of the passage / public streets/road on which the site abuts or gains access shall be as required for different uses and types of developments.
(b) The minimum width stated above shall be the existing width of the road and not the street alignment prescribed.
(2) When layout site abuts a National / State Highway or Bye Pass Road, a Service Road of having a minimum width of 7 m shall be provided which shall include 1m wide median having width of 0.5m to 1.0m and to a height of 0.30m to 0.45m separating the main road from the service road. There would not be any necessity to obtain an NoC from the National / State Highway authorities for any such layout development.
(3) The width of the streets/roads and passages in the layouts/subdivisions/ amalgamations shall conform to the minimum requirements given below:
(a) Residential developments
(b) Industrial Development
||Minimum width of passage
| When it is intended to serve only one plot and length of the passage does not exceed 100 metres
||The passage will remain private
| When it is intended to serve two to five plots and the length of the passage does not exceed 120 metres
||The passage will remain private
|When it is intended to serve more than 5 plots
||The street shall become public
Note: Not withstanding anything contained above the competent authority reserves the right to revise layouts proposed by the applicant and applied for sanction in order to provide for better / adequate linkages and proper circulation pattern considering local conditions etc.
(4) Cul-de-sacs can be provided when their length do not exceed 60 metres. At the closed end, they shall be provided with a turnaround area of 9 m. x 9 m. or provisions for reversing cars satisfying standards.
(5) Splay: - A splay at the intersection of two or more streets / roads shall be provided subject to the minimum dimensions given below:
||When the narrower road is of width
||1.5m. x 1.5m.
||More than 7.2m. Upto 12m
||3.0m. x 3.0m.
||More than 12m. Upto 30.5m
||4.5m. x 4.5m.
||More than 30.5m.
||6.0m. x 6.0m.
(6) Reservation of land for recreational purposes in a layout or sub-division for residential, commercial, industrial or combination of these uses shall be as follows.
|Extent of layout
|For the first 3000 square metres
|Between 3000 square metres and 10,000 square metres
||10 per cent of the area excluding roads or in the alternative he shall pay the market value of equivalent land and excluding the first 3000 square metres as per the valuation of the registration department. "No such area reserved shall measures less than 100 square metres with a minimum dimension of 10 metres."
|Above 10,000 square metres
||10 per cent of the area excluding roads. It is obligatory to make the reservation and no equivalent land cost in lieu of the same is acceptable
(a) The land for community recreational purposes shall be restricted to ground level, in a shape and location to be specified by the competent authority. The land so reserved shall be free from any construction by the layout owner or developer.
(b) The building and use of land shall conform to the conditions that may be imposed while sanctioning the layout. The space set apart for commercial, institutional, industrial or other uses shall be used only for the purpose set apart. However conversion of the use of these non-residential use sites can be considered and decided on its merits when it is proved by the developer that demand for the same does not exist.
(c) Structures for watchman’s booth, gardener’s instrument room, public toilet and police booth for the purpose of maintenance and toilets may be permitted with total floor area not exceeding 5 percent the total OSR area in one place.
(d) Public Parking lot may be permitted in basement below the OSR.
(e) Rain water harvesting water tanks and STP may be permitted below the OSR.
(7) (a) The space set apart for roads (except those which may remain private) and the 10% area reserved for recreational purposes shall be transferred to the Local Body free of cost through a registered gift deed before the actual sanction of the layout. The exact mode of conveyance should be consistent with the relevant enactment and regulations.
(b) In cases of industrial estates developed by Government department / agencies, the competent authority reserves the right to allow them to retain the spaces set apart for roads and the recreational spaces (as parks/play grounds) and maintain them for the purposes to the satisfaction of the competent authority.
(c) The competent authority reserves the right to reserve space for recessed bus stops as part of the road space in the layouts exceeding 2 hectares, where found necessary on public interest and this part of the road space also be transferred free of cost as stated in the sub rule 7(a) above.
(8) Ten per cent of layout area (excluding roads), additionally, shall be reserved for "Public Purpose" in those layouts, which are more than 10000 sq.m. in extent. Interested Government departments / agencies shall be given intimation of layout approval by the Local body and requested to purchase the land from the owner or developer on paying the cost of plots so reserved at Guide Line Value of the Registration Department.
(9) In cases where the extent of the residential layout exceeds 10,000 sq.m. ( 1 hectare) ten per cent of layout area (excluding roads) shall be developed as EWS plots and the owner or developer or promoter shall sell these plot only for this purpose. No conversion or amalgamation shall be permissible in these cases of EWS plots at any point of time
(10) When the area of land proposed for subdivisions is 20 hectares or more the competent authority may reserve not more than 12 percent of the total area for industrial and commercial purposes.
(11) The cost of laying improvements to the systems in respect of road, water supply, sewerage, drainage or electric power supply that may be required as assessed by the concerned authority, namely, the local body and Tamil Nadu Electricity Board, shall be borne by the applicant.
(12) Not withstanding anything stated above, layouts for EWS housing, site and services schemes, and Slum improvement may be approved subject to certain conditions as may be stipulated by the Competent Authority.
(46) Transferable Development Rights:
 In certain circumstances, the development potential of the whole or a part of the plot/site may be separated from the land itself and may be made available to the land owner in the form of Transferable Development Rights (TDR) excepting in the case of existing or retention users, or any compulsory reservation of space for public purpose or recreational use or EWS/social housing etc. in the cases of subdivisions/ layouts/ special buildings/ group developments/ multi-storeyed buildings or such other developments prescribed in these rules.
 Transferable Development Rights (TDR) shall apply to cases, where a private land is required for-
(i) any road widening/new road formation as proposed and notified by the local body or the Government department / agency
(ii) any traffic and transport infrastructure development such as bus stops/stands, metro rail, BRTS etc.
(iii) any other urban infrastructure development such as water supply, sewerage, drainage, electricity, education, health, notified by the State Government Department or Government Agency or local body.
 These rights may be made available and be subject to the regulations given in the Annexure IX.
Provided that in cases of slum dwellers (including pavement dwellers) rehabilitation schemes on private lands executed by a private developer/society/NGO, the award of TDR for FSI may be considered subject to such guidelines and conditions as may be decided by the Government.
(47) Premium FSI
The Executive Authority of the local body may allow Premium FSI over and above the normally allowable FSI subject to a maximum of 1 (one) relating the same to the road width parameters as follows:
||Premium FSI (% of normally allowable FSI)
|18 meters and above (60sft and above)
|12 metres – below 18 meters (40sft – below 60sft)
|9 meters – below 12 meters (30sft – below 40sft)
The Premium FSI shall be allowed in specific areas as may be notified subject to Guidelines and on collection of charge at the rates as may be prescribed by the Government. The amount so collected towards the award of Premium FSI shall be remitted into the Government account to be allotted separately for this purpose for utilising it for infrastructure development in that area as may be directed by the Government. (48) Repeal and Savings
Anything done or any action taken including action against unauthorized/deviated constructions, shall be deemed to have been done or taken with reference to the corresponding provisions of these Development Regulations and continue in force accordingly, unless and until superseded by anything done or any action taken with reference to these Development Regulations.
Provided further that the action against unauthorized/deviated developments with reference Master Plans taken by the Competent Authority or person to whom the Authority had delegated powers, immediately before commencement of these regulations may be continued irrespective of whether the unauthorized/deviated development is in conformity with the Master Plan DR or not, as if this Development Regulations have not come into force, till the unapproved/deviated development is demolished or got regularised on its merits with reference to these Development Regulations.
(49) Structural Safety
(1) In the cases of Non High Rise buildings with height upto 9.0m., industrial or institutional buildings upto G+1 floors in height and with floor area [both existing and proposed] not exceeding 300 sq. m.), the provisions in this part of the rules relating to structural design, submission of working drawings/structural drawings, etc. shall not apply except that all such applications and plans for these developments shall be signed by the owner /Registered Developer, and the Registered Engineer/ Architect who prepared the plan and further the Registered Engineer/ Architect shall certify that the structural design of the small development has been done as per the latest Indian standard Specifications and the NBC.
(2) Structural design The structural design of foundations, elements of masonry, timber, plain concrete, reinforced concrete, pre-stressed concrete and structural steel shall conform to the provisions of part VI Structural Design Section – 1 Loads, Section – 2 Foundation, Section – 3 Wood, Section – 4 Masonry, Section – 5 Concrete & Section – 6 Steel of National Building Code of India (NBC), taking into consideration the Indian Standards as given in the Annexure XI
(3) Structural Design Basis Report [SDBR] Drawings and Documents to be submitted for approval of appropriate authorities shall include SDBR. In compliance of the design with the Indian Standard the Registered Structural Engineer on Record shall submit a structural design basis report in Form no.1 in Annexure IV.
(4) Review of Structural Design The Competent Authority for issue of Building permit in case of Village Panchayats, if necessary, shall create a Structural Design Review Panel (SDRP) consisting of senior SERs whose task will be to review and certify the design prepared by SER for all High Rise buildings and in cases of other developments whenever referred by the Competent Authority (excluding for Non High Rise buildings with height upto 9.0m.)
(5) Certification Regarding Structural Safety in Design The Registered Structural Engineer on Record (SER) shall give a certificate of structural safety of design as per Proforma given in Form- 10 in Annexure XIV at the time of completion and structural inspection report as per proforma given in Form 11 at different stages of construction.
(6) Constructional Safety
a) All construction (except Non High Rise buildings with height upto 9.0m.) shall be carried out under supervision of the Registered Construction Engineer on Record (CER)
b) CER shall give a certificate of structural safety of construction while submitting the progress report as per proforma given in Form-3,4,5&6 in Annexure XIV at the different stages of construction and at the time of completion. as per proforma given in Form No. 9 in Annexure IV.
(7) Quality Control and Inspection
a) All High rise building construction with more than 17.25m. in height shall be carried out under quality inspection program prepared and implemented under the the Registered Quality Auditor on Record (QAR).
b) The Registered Quality Auditor on Record (QAR) shall give a certificate of quality control as per proforma given in Form-12 in Annexure XIV .
c) Quality Inspection Programme to be carried on the site shall be worked out by QAR in consultation with the owner, builder, CER.
(8) Protective Measures in Natural Hazard Prone Areas In natural hazard prone areas, structures buildings and installations, which cannot be avoided, such constructions/ developments should be properly safeguarded by taking protective measures as recommended given in the Annexure XII
(9) Maintenance of buildings in seismic Zone-III
a) In case of High rise buildings and buildings for public assembly older than fifty years, it shall be the duty of the owner of a building, to get his building inspected by a Registered Structural Engineer (RSE) within a year from the date of coming into force of these regulations. The Structural Inspection Report (Form No.17 in Annexure XIV) shall be produced by the Owner to the Competent Authority. If any action, for ensuring the structural safety and stability of the building is to be taken, as recommended by SER, it shall be completed within five years. For other buildings less than fifty years old, the owner shall get his building inspected after the age of building has crossed fifty years. The procedure shall be followed as per above rule.
b) Seismic Strengthening/Retrofitting Prior to seismic strengthening/ retrofitting of any existing structure, evaluation of the existing structure as regards structural vulnerability in the specified wind/ seismic hazard zone shall be carried out by a RSE. If as per the evaluation of the RSE the seismic resistance is assessed to be less than the specified minimum seismic resistance as given in the “note” below, action should be initiated to carry out the upgrading of the seismic resistance of the building as per applicable standard guidelines.
(i) for masonry buildings reference is to be made to IS: 4326 and IS: 13935 and (ii) for concrete buildings and structures reference to be made to BIS code on evaluation and seismic strengthening for retrofitting of RCC buildings under preparation at present.
(50) Requirements of parts of buildings
(a) Main buildings: The plinth or any part of a building or out house shall be so located with respect to the surrounding ground level that adequate drainage of the site is assured. The height of the plinth shall be not less than 45 cm from the surrounding ground level. However in flood prone areas, plinth shall be above the maximum flood level notified by the concerned authority.
(b) Interior court yards and covered parking areas shall be raised at least 15 cm above the determining ground level and shall be satisfactorily drained
(a) The outer walls of a building shall be constructed of bricks or stone or other incombustible material.
(b) All walls of a building must be properly bonded.
(i) Every wall and pier of the building except when built on materials such as steel or reinforced cement concrete shall be provided with a damp-proof course.
(ii) Damp-proof course shall be laid at a level not higher than the lowest part of underside of the construction of the ground floor and shall extend to the full width and extent of such walls or piers. It shall be at least two centimeters thick. Where the damp-proof course is provided below the plinth level, vertical damp-proof course shall be provided between the floor and the inside of the plinth.
(3) Paving materials:
In the case of every building intended to be used for human habitation, every part of each floor of such building, including every passage and airy verandah therein, every lavatory, urinal, washing or bathing place included in it, shall be laid or paved with stone or non-absorbent tiles laid in cement or other durable material, impervious to moisture.
(4) Structural metal shall not be used for conducting electrical /service currents: Provided that such metal may be used as part of a sufficient and properly earthed apparatus for protection of the building against damage by lightening.
(5) Habitable rooms
(a) Height: The height of all rooms for human habitation shall not be less than 2.75m measured from the surface of the floor to the lowest point of the ceiling (bottom of slab). In the case of pitched roof, the average height of rooms shall not be less than 2.75m. The minimum clear head room under a beam, folded plates or eaves shall be 2.4m. In the case of air conditioned rooms, a height of not less than 2.5m measured from the surface of the floor to the lowest point of air conditioning duct or the false ceiling shall be provided.
(b) Size: The area of habitable room shall not be less than 9.5sq.m. where there is only one room with a minimum width of 2.4m. Where there are two rooms, one of these shall not be less than 9.5sq.m. and the other not less than 7.5sq.m. with a minimum width of 2.1m.[Pooja room, or store room shall not be taken as a habitable room]
(a) Height: The height of a kitchen measured from the surface of the floor to the lowest point of the ceiling (bottom slab) shall not be less than 2.75m, except for the portion to accommodate floor trap of the upper floor.
(b) Size: The area of a kitchen where separate dining area is provided shall be not less than 5.0 sq.m. with a minimum width of 1.8m. where there is a separate store, the area of the kitchen may be reduced to 4.5sq.m. A kitchen, which is intended for use as a dining area also, shall have a floor area of not less than 7.5 sq.m. with a minimum width of 2.1m
(c) Other requirements: Every room to be used as kitchen shall have:
[i] Unless separately provided in a pantry, means for the washing of kitchen utensils which shall lead directly are through a sink to a grated and trapped connection to the waste pipe;
[ii] an impermeable floor;
[iii] a flue, if found necessary; and
[iv] a window or ventilator or opening.
(7) Bathrooms and Water closets
(a) Height: The height of a bathroom or water closets measured from the surface of the floor to the lowest point in the ceiling (bottom of slab) shall not be less than 2.1m.
(b) Size: The area of a bath room shall not be less than 1.4 sq.m. with a minimum width of 1.0m. The floor area of water closet shall be 1.0 sq.m. with a minimum width of 0.9m. If bath and water closet are combined, its floor area shall not be less than 2.4sq.m. with a minimum width of 1.2m.
(c) Other requirements: Every bath room or water closet shall:
[i] be so situated that at least one of its walls shall open to external air;
[ii] not be directly over or under any room other than another water closet, washing place, bath or terrace, unless it has a water-tight floor;
[iii] be enclosed by walls or partitions and the surface of every such wall or partitions shall be finished with a smooth impervious material to a height of not less than 1m above the floor of such a room;
[iv] be provided with an impervious floor covering, sloping towards the drain with a suitable grade and not towards varandah or any other room; and
[v] have a window or ventilator, opening to a shaft or open space, of area not less than 0,3 sq.m.
(vi) the door of the water closet/bath not to be directly opened to a kitchen
(8) Mezzanine Floor
(a) Height - It shall have a minimum height of 2.2 m.
(b) Size- The minimum size of the mezzanine floor, if it is to be used as a living room shall not be less than 9.5 m2. The aggregate area of such mezzanine floor in a building shall in no case exceed one- third the plinth area of the building.
(c) Other Requirements - A mezzanine floor may be permitted over a room or a compartment provided:
(i) it conform to the standard of living rooms as regards lighting and ventilation in case the size of mezzanine floor is 9.5 m2 or more (see 4.31.1);
(ii) it is so constructed as not to interfere under any circumstances with the ventilation of the space over and under it;
(iii) such mezzanine floor is not sub-divided into smaller compartments;
(iv) such mezzanine floor or any part of it shall not be used as a kitchen; and (v) in no case shall a mezzanine floor be closed so as to make it liable to be converted into unventilated compartments.
(9) Store room Height:
The height of a storeroom shall be not less than 2.2m. Size: The size of a storeroom, where provided in a residential building, shall be not less than 3sq.m.
(10)Garage Height -
The height of a garage shall be not less than 2.4 m. Size - The size of garages shall be as below:
a) Private Garage - 3.0 m × 6.0 m, minimum; and
b) Public Garage - Based on the number of vehicles parked by ECU.
(a) The basement shall not be used for residential purposes
(b) The basement shall have the following requirements:
[i] Every basement used for non-habitable purposes shall be in every part at least 2.4m in height from the floor to the underside of the roof slab or ceiling; for habitable purposes, it shall conform to the standards prescribed for habitable rooms above.
[ii] Adequate ventilation shall be provided for the basement. The ventilation requirements shall be the same as require by the particular occupancy according to byelaws. Any deficiency may be met by providing adequate mechanical ventilation in the form of blowers, exhaust fans, air conditioning systems, etc.;
[iii] Adequate arrangements shall be made such that surface drainage does not enter the basement;
[iv] The walls and floors of the basement shall be water-tight and be so designed that the effects of the surrounding soil and moisture, if any, are taken into account in design and adequate damp proofing treatment is given; and
[v] The access to the basement shall be separate from the main and alternative staircase providing access and exit from higher floors. Where the staircase is continuous in the case of building served by more than one staircase, the same shall be of enclosed type serving as a fire separation from the basement floor and higher floors.
[vi] The exit requirements in basements shall comply with the provisions of the NBC Part 4 ‘Fire and Life Safety’
The chimneys shall be built at least 0.9 m above flat roofs, provided the top of the chimneys is not below the top of the adjacent parapet wall. In the case of sloping roofs, the chimney top shall not be less than 0.6 m above the ridge of the roof in which the chimney penetrates.
Parapet walls and handrails provided on the edges of roof terraces, balcony, verandah, etc. shall not be less than 1.2m and not be more than 1.5m in height from the finished floor level.
a. The roof of a building shall be so designed and constructed as to effectively drain water by means of sufficient rain-water pipes of adequate size wherever required, so arranged, jointly and fixed as to ensure that the rain-water is carried away from the building without causing dampness in any part of the walls, roof or foundations of the building or an adjacent building.
b. Rain-water pipes shall be affixed to the outside of the external walls of the building or in recesses or chases cut or formed in such external walls or in such other manner.
c. Conservation of rain-water using suitable rainwater harvesting techniques including by roof water collection shall be made.
(15) Mosquito-proof Water Tank
Water storage tank shall be maintained in a perfect mosquito-proof condition, by providing a properly fitting hinged cover, and every tank more than 1.50mts. in height shall be provided with a permanently fixed iron ladder to enable inspection by anti-malaria staff.
(16) Lighting and Ventilation Rooms
shall have, for the admission of light and air, one or more openings, such as windows and ventilators, opening directly to the external air or into an open verandah.
(a) Notwithstanding the area of openings stated above, the minimum aggregate area of such openings, excluding doors (inclusive of frames), shall be not less than one- eighth of the floor area;
(1) If a window is partly fixed, the openable area shall be counted
(2) No portion of a room shall be assumed to be lighted, if it is more than 7.5m away from the opening assumed for lighting that portion.
(3) The area of openings as given above shall be increased by 25% in the case of a kitchen
(4) in cases where the ventilation is derived through open to sky. the dimensions of the open to sky need to be 1.5m x 2.5m. This will apply to kitchens and store rooms but not to lavatories and bath rooms which shall have windows or ventilators of not less than 0.5sq.m. abutting such open space
(b) For requirements regarding lighting and ventilation for different uses and occupancy reference shall be made to the NBC Part 8 ‘Building Services, Section 1 Lighting and Ventilation’.
(17) Stairways Requirements
(a) Minimum width of staircase shall be:
(a) Ordinary Residential buildings…………. 0.75 m
(b) Other Residential buildings ……………. 0.90 m
[ii] Assembly buildings like : Auditoria, assembly halls….. ………………… 2.00 m
[iii] All other buildings………………………………. 1.50 m
[iv] Educational institutions………………………. 2.00 m
(b) Minimum tread The minimum width of tread without nosing shall be 250mm for residential buildings. The minimum width of tread for other buildings shall be300mm. In case of spiral staircases, it shall have the above min. tread width at the outer end)
(c) Maximum riser The maximum height of riser shall be 190 mm for residential buildings and 150 mm for other buildings and these shall be limited to 15 per flight.
(d) The minimum headroom in a passage under the landing of a staircase shall be 2.2m. The minimum clear headroom in any staircase shall be 2.2m.
(51) Exit Requirements
(1) The following general requirement shall apply to exits:
(a) Every building meant for human occupancy shall be provided with exits sufficient to permit safe movement and also escape of occupants in case of fire or other emergency.
(b) All exits shall be free of obstructions.
(c) No building shall be altered so as to reduce the number, width or portion of exits to less than required.
(d) Exits shall be clearly visible and the routes to reach exits shall be clearly marked and signs posted to guide the occupants of floor concerned.
(e) All exit ways shall be properly illuminated.
(f) Fire fighting equipment where provided along exits shall be suitably located and clearly marked but must not obstruct the exit way and there should be clear indication about its location from either side of the exit way.
(g) Alarm devices shall be installed to ensure prompt evacuation of the occupants concerned through the exits, wherever required.
(h) All exits shall provide continuous means of egress to the exterior of a building or to an exterior open space leading to a street.
(i) Exits shall be so arranged that they may be reached without passing through another occupied unit, except in the case of residential buildings.
(2) Types of Exits
(a) Exits shall be either horizontal or vertical type. An exit may be doorway, corridor and passage to an internal staircase or external staircase, ramp or to a verandah and/or terraces that have access to the street or to roof of a building. An exit may also include horizontal exit leading to an adjoining building at the same level.
(b) Lifts, escalators and revolving doors shall not be considered as exits.
(3) Number and size of Exits
The requisite number and size of various exits shall be provided, based on the occupants in each room and floor based on the occupant load, capacity of exits, travel distance and height of buildings as per provisions of the NBC Part 4 ‘Fire and Life Safety’.
(4) Arrangement of Exits
a) Exits shall be so located so that the travel distance on the floor shall not exceed 22.50 m. for residential, educational, institutional and hazardous occupancies and 30.0 m. for assembly, business, mercantile, industrial and storage occupancies. Whenever more than one exit is required for a floor of a building they shall be placed as remote from each other as possible. All the exits shall be accessible from the entire floor area at all floor levels.
b) The travel distance to an exit from the dead end of a corridor shall not exceed half the distance as stated above except in the case of institutional occupancy in which case it shall not exceed 6.0 m
(5) Passenger elevators or lifts
(a) Every multistoreyed building, in addition to the stair-case, shall be provided with lift or lifts, depending on the number of persons using each floor and which shall be installed at such places and at such distances as prescribed in the NBC.
(b) Every lift shall be in conformity with the following requirements:
(i) The lift way and the car shall be enclosed.
(ii) The lift shaft shall be enclosed with fire resisting materials and shall be ventilated from the highest point direct to the open air.
[iii] The motors, the winding gear and the operating mechanism shall be installed in a chamber constructed of fire resisting materials and shall be ventilated from the highest point direct to the open air.
(iv) These shall be fitted with an inter-locking device of such a type as will prevent,
(a) all landing doors, other than the door to be opening at which the lift car is at rest, from being opened and
(b) the car being moved until all doors, including the car door, are closed.
(v) Precautionary measures shall be adopted to ensure the safety of passengers in the event of:-
(a) an interruption of failure of electric supply;
(b) a defect or failure in the controlling mechanism;
(c) the rupture or displacement of ropes or shelves;
(d) over running or excessive speed of the lift-car due to electrical or other defects in the motor or other mechanism;
(e) the loading of the car in excess of its maximum capacity; and
(f) articles falling upon the lift.
(vi) The safe carrying capacity of the lift or elevator shall be conspicuously posted in or on the car or platform.
(vii) Every lift shall be properly lighted.
(viii) Once in every year, lift shall be got inspected and certified by a competent Engineer
(c) For requirements regarding planning, designing and installation, etc. of lifts and escalators, reference shall be made to the NBC Part 8 ‘Building Services Section 5 Installation of Lifts and Escalators’.
(52) Sanitation requirements
a. There should be at least one water tap and arrangement for drain in the vicinity of each water closet or group of water closets in all the buildings.
b. Each family dwelling unit shall have at least one water closet and one kitchen sink. A bath or shower shall also be installed to meet the basic requirements of sanitation and personal hygiene.
c. All other structures for human occupancy shall have adequate sanitary facilities, but in no case less than one WC and one other fixture for cleaning purposes.
d. All materials, fittings and sanitary appliances shall conform to the NBC.
(2) Sanitary fittings
(a) For Residences
(i) Dwellings with individual conveniences shall have at least the following fitments:
a. One bath room provided with a tap and a floor trap;
b. One WC with flushing apparatus with an ablution tap
c. One tap with a floor trap or a sink in kitchen or wash place.
(ii) Where only one WC is provided in a dwelling, the bath and WC desirably be separated accommodated
(iii) Dwellings without individual conveniences shall have the following fitments:
a. One water tap with flow trap desirably in each tenement
b. One WC with flushing apparatus and an ablution tap for every two tenements
c. One bath with water tap and flow trap for every two tenements.
(b) For Buildings Other than Residences The requirements for fitments for sanitation in the case of buildings other than residences shall be in accordance with the Tables given in the Annexure X.
(a) Taking into account the site conditions, land and building uses, and nature of wastes within the site, outlet connection ( i.e. the availability of sewers or other outlets, sub-soil conditions etc.), sewage and waste water collection and disposal system for a building or a group of buildings or for a layout shall be designed and it shall conforming to NBC.
(b) Septic Tanks
i. Where a septic tank is used for sewage disposal, the location, design and construction of the septic tank shall conform to requirements of the NBC and as per provisions in G.O.Ms. No 106, MAWS Dept., dated 01.09.2014 (operative guidelines for septage management for local bodies)
ii. Location of the Septic Tanks and Subsurface Absorption System: A sub-soil dispersion system should preferably not be closer than 18m from any source of drinking water, such as well, to mitigate the possibility of bacterial pollution of water supply.
a. Dimensions of septic tanks – Septic tanks shall have a minimum width of 75 cm, a minimum depth of 1m below the water level and a minimum liquid capacity of 1 cu.m. The length of tanks shall be 2 to 4 times the width;
b. Septic tanks may be constructed of brickwork, stone masonry, concrete or other suitable materials as approved by the Authority;
c. Under no circumstances shall effluent from a septic tank be allowed into an open channel, drain or water body without adequate treatment;
d. The minimum nominal diameter of the pipe shall be 10 cm. Further, at junctions of pipes in manholes, direction of flow from a branch connection shall not make an angle exceeding 45 degrees with the direction of flow in the main pipe;
e. The gradients of land drains, under-drainage as well as the bottom of dispersion trenches and soak ways shall be between 1:300 and 1:400;
f. Every septic tank shall be provided with ventilating pipe of at least 5 cm diameter. The top of the pipe shall be provided with a suitable cage of mosquito-proof wire mesh. The ventilating pipe shall extend to a height which would cause no smell nuisance to any building in the area. Generally, the ventilating pipe may extend to a height of about 2m, when the septic tank is at least 15m away from the nearest building and to a height of 2m above the top of the building when it is located closer than 15m.
g. When the disposal of septic tank effluent is to a seepage pit, the seepage pit may be of any suitable shape with the least cross-sectional dimension of 0.90m and not less than 1.00m in depth below the invert level of the inlet pipe. The pit may be lined with stone, brick or concrete blocks with dry open joints which should be backed with at least 7.5 cm of clean coarse aggregate. The lining above the inlet level should be finished with mortar. In the case of pits of large dimensions, the top portion may be narrowed to reduce the size of the RCC cover slabs. Where no lining is used, especially near trees, the entire pit should be filled with loose stones. A masonry ring may be constructed at the top of the pit to prevent damage by flooding of the pit by surface runoff. The inlet pipe may be taken down a depth of 0.90m from the top as an antimosquito measure; and
h. When the disposal of the septic tank effluent is to a dispersion trench, the dispersion trench shall be 0.50m to 1.00m deep and 0.30m to 1.00m wide excavated to a slight gradient and shall be provided with 150mm to 250mm of washed gravel or crushed stones. Open jointed pipes placed inside the trench shall be made of unglazed earthenware clay or concrete and shall have a minimum internal diameter of 7.5 cm to 10 cm. Each dispersion trench shall not be longer than 30m and trenches shall not be placed closer than 1.8m.
(4) Separation of bath and wash basin water and reuse.-
All buildings shall be provided with separate pipelines; one for collecting waste water from bath and wash basins and the other for connecting the toilets. The wastewater from the toilets alone shall be connected to the street sewer. The wastewater from the bath and wash basins shall be disposed off as here under. –
Each building shall have a separate downward pipeline to collect waste water from bath and wash basins and the collected waste water shall be treated adequately by organic or mechanical recycling and taken to a sump for onward pumping to the exclusive overhead tank or to a separate compartment of over head tank for exclusive use of toilet flushing through cisterns. The excess wastewater not reused for toilet flushing, shall be used for gardening or rain water harvesting structure within the site.
Explanation :- For the purposes of these rules in regard to recycling systems are concerned, any other modifications, additional structures, alternative designs furnished by the applicant can be considered for approval, if it conforms to recycling concept to the satisfaction of the competent authority 'for building approval.
The above stated waste water reuse arrangement is mandatory for High Rise buildings; optional and preferable for non- High Rise buildings.
(53) Storm Water Drainage
(1) Storm water drainage system in a site shall be designed in such a way to harvest cent percent of it to recharge ground water table below. The design factors of rain water harvesting structures within a site shall include type of soil and its absorption capacity, ground slope, intensity and duration of rain fall for the design period etc. However there shall also be a provision for carrying any excess storm water which was not absorbed during an exceptional rain fall, to drain or discharge into the street/ public storm water drainage system.
(2) No existing natural or man-made drainage system such as channel, canal nallah etc. passing through the site shall be closed. When it is realigned within the site optimizing the usability of the site, due care shall be taken that its carrying capacity or velocity of flow is not reduced affecting the upstream and downstream sites and such a realignment shall be done only with prior approval of the Executive Authority of the Local body.
(54) Electrical and Allied Installations (Including lightening protection of buildings)
For requirements regarding electrical installations in buildings including lightening protection of buildings, reference shall be made to the NBC Part 8 ‘Building Services, Section 2 Electrical and Allied Installations’. Power room/ Generator room/RMG/RMU/ Metering sets and panels to be installed at Ground floor or above, at a height of atleast 1 meter above the Ground level. Installation at basement floors shall be discouraged.
(55) Air conditioning, Heating and Mechanical Ventilation
For requirements regarding design, construction and installations of air conditioning, heating and mechanical ventilation systems, reference shall be made to the NBC Part 8 ‘Building Services, Section 3 Air conditioning, Heating and Mechanical Ventilation’.
(56) Gas supply
For requirements regarding gas pipe installations, reference shall be made to part 9 plumbing services, Section 3 Gas supply of National Building Code of India.
(57) Boiler Room
The following aspects may be taken into account in the location of Boiler/Boiler Room:
a. The boiler shall not be allowed in sub-basement but be allowed in the first basements away from the escape routes.
b. The boilers shall be installed in a fire resisting room of 4 hours fire resistance rating, and this room shall be situated on the periphery of the basement. Catch pit shall be provided at the low level. Entry to this room may be provided with a composite door of two hour fire resistance.
c. The boiler room shall be provided with fresh air inlets and smoke exhausts directly to the atmosphere.
d. Foam inlets shall be provided on the external walls of the building at the ground floor level to enable the fire services to use foam in case of fire.
e. The furnace oil tank for the boiler, if located in the adjoining room shall be separated by fire resisting wall of 4 hour rating. Entry to this room shall be provided with a composite door of 2 hour fire resistance. A curb of suitable height shall be provided at the entrance in order to prevent the flow of oil into the boiler room in case of tank rupture.
(58) Acoustics, Sound Insulation and Noise Control:
For requirements regarding the desired noise levels and sound insulation in different occupancies, reference shall be made to the NBC Part 8 ‘Building Services, Section 4 Acoustics, Sound Insulation and Noise Control’.
(59) Swimming Pool or Pool
It means an artificial body of water having the water surface area of 7.0 square metre or more and having water depth of 0.6 metre or more used by an individual or collectively by a number of individuals primarily for the purpose of swimming and includes related equipment, structures, areas, and enclosures intended for the use of individuals using or operating the swimming pool such as equipment, dressing booth, locker, shower and bath rooms; The regulation and monitoring of swimming pool shall be in accordance with Annexure XX.
(1) Structures may be
(a) Steel fabricated tower or antenna’s on steel pole;
(b) Pre-fabricated shelter of fiberglass or P.V.C. on the building roof top/terrace for equipment; (c) Masonry Structure/ Shelter on the ground for equipment; (d) D.G. Set with sound proof covers to reduce the noise level.
The Telecommunication Infrastructure shall be either placed on the building rooftop or on the ground or open space within the premises subject to the following regulations:
(a) Base Trans Receiver Station (BTS) Towers and installation of equipment for Telecommunication Networks:
[i] BTS structures are not considered as buildings and only structures for telecommunication. It can be allowed either on a plot or on top of a building.
[ii] When proposed in a plot, it shall have proper access, which may be a private access.
[iii] When the proposed BTS tower is on a roof top, for the purpose of deciding on the height of the building defined in these rules, it shall not be taken into account, hence the question of additional setback if any for the building does not arise.
[iv] It shall not be located either within a Heritage precinct or on a heritage building listed for conservation.
[v] BTS room size shall not exceed 15 sq.m. in floor area and 3 m in height.
[vi] Height of these structures shall conform to the regulations of the Civil Aviation Department, Indian Air Force and Director of Fire and Rescue Service.
[vii] Building over which BTS towers proposed shall be structurally strong to take the load of these structures including the wind load to be certified by the Registered Structural Engineer.
[viii] These BTS structures shall be sound and safe.
[ix] The generator shall not cause noise or air pollution.
[x] The service provider shall pay the fees as may be uniformly fixed by the Government and notified from time to time.
The Service provider shall have obtained necessary permission from the Standing Advisory Committee on Radio Frequency Allocation” (SACFA) issued by Ministry of Telecommunications before seeking Building Permit for the telecommunication structures.
(a) Every applicant will have to produce the structural safety & stability certificate for the above structures and for the building over which it will be erected from the Registered Structural Engineer (SER) and it shall be the liability of both the owner and the SER.
(b) Applicant has to produce / submit plans of structure to be erected.
(c) Projections: No Pager and/or Telephone Tower shall project beyond the existing building line of the building on which it is erected in any direction. Others
(61) Water Conservation
(1) Rain Water Harvesting
(a) Effective measures shall be taken within each premises for conservation of rainwater, and rainwater-harvesting structures at least to the following standards shall be provided; the same shall be shown in the plan applied for building permission.
(i) For Non High Rise buildings upto 9m. in height Percolation pits of 30centimeter diameter and 3 metres depth may be made and filled with broken bricks (or pebbles) for 2.85 metres and the top covered with perforated Reinforced Concrete Cement (R.C.C.) slab. These percolation pits may be made at intervals of 3 metres center to center along the plinth boundary. The rain water collected in the open terrace may be collected through a 150 millimetre PVC Poly Vinyl Chloride Pipe laid on the ground and may be allowed to fall in the percolation pits or into a open well through a seepage filter of 60cm x 60 cm (filter media broken bricks) provided before the open well which will improve the ground water level. A dwarf wall of 7.5 centimeter height is built across the entry and exit gates to retain water and allow it to percolate within.
(ii) For all other buildings: - There shall be a pebble bed of 1 m width and 1.5 m depth all round the building and filled with rounded pebbles of 5 cm to 7.5 cm size. The concrete paving around the building has to be sloped at about 1 in 20 towards the pebble bed, so that rain water from the terrace and side open spaces flow over this pavement and spread into the pebble bed around. Dwarf walls in masonry of 7.5 cm, height shall be constructed at the entrance and exit gates to retard rainwater collected into the compound from draining out to the road.
(2) Additional regulations for all buildings:
(a) In the ground floor, floor level of water closets shall be at least 0.9 metre above the road level to ensure free flow.
(b) All centrally air conditioned buildings shall have their own wastewater reclamation plant and use reclaimed wastewater for cooling purposes.
(c) A separate sump shall be constructed for storing potable where the water is supplied by the Local Body and the volume of such sump shall not exceed 1,000 litres per dwelling unit. This sump shall be independent of other tanks, which may be constructed for storing water obtained from other sources.
(62) Fire Safety
(1) In general, all buildings in their design and construction shall be such as to contribute to and ensure individually and collectively the safety of life from fire, smoke, fumes and also panic arising from these or similar other causes. In large buildings a fire may not itself provide adequate warning to occupants; automatic fire detecting and alarming facilities shall be provided where necessary to warn occupants or the existence of fire, so that they can escape.
(2) Fire protecting and extinguishing system shall conform to accepted standards and shall be installed in accordance with good practice as recommended in the National Building Code of India (amended from time to time).
(3) the requirements for fire protection shall include high rise buildings which are of 17.25 m. and above in height and public buildings, commercial complexes/malls, cinema theatre kalyana mandapam, community hall, all categories of industries and warehouses, commercial buildings where explosives, fire crackers and other similar inflammable materials are handled/traded.
(63) Installation of closed circuit television units in Public Buildings
The installation of closed circuit television units in Public Buildings shall be in accordance with regulations prescribed in Annexure XXII.
(64) Architectural Control
The Architectural façade or elevation of any building or the architectural features of any premises shall be in conformity with such conditions as the Local body may impose at the time of grant of permission.
(65) Conservation of buildings of historical or architectural interest:
In the opinion of the Executive Authority, if a building or premises not covered under the Archeological Monuments Act is of historical or architectural interest and needs to be conserved, such heritage buildings/premises shall be listed and notified with the approval of the Government and any development at such heritage building premises shall conform to the regulations to be approved and notified by the Government given in Annexure XVI.
(66) Tree preservation
(1) The Executive Authority may, in the interest of amenity make a Tree Preservation Order for any tree or group of trees or belt of forestland.
(2) The tree preservation order may prohibit the felling, topping, lopping or willful destruction of the trees concerned, except when those operations are carried-out with the permission of the Executive Authority and under such conditions, as the Executive Authority may deem fit. In granting Building Permit for any development, the Executive Authority may wherever it is appropriate, make adequate provision for the preservation or planting of trees, as may be specified.
(67) Discretionary Powers
(1) In specific cases where a clearly demonstrable hardship is caused the Government may relax any of the parameters prescribed by these rules.
(2) In the case of organized market and shopping centers, the Government may, at its discretion, permit use of machinery not exceeding 15 horsepower in respect of each shop, if it is considered that such permission shall not be injurious to health or amenity for the area.
(3) The normally permissible FSI for Information Technology industries, Information Technology Enabling Services and Bio-informatics units certified by the appropriate authority in Designated Information Technology Parks, may be relaxed by the Government up to the extent of 100 percent.
(68) Delegation of Powers
Any of the powers, duties or functions conferred or imposed or vested with the Executive Authority or Government by any of foregoing rules may be delegated to any Officer under its control or to any Officer of Government/an Agency of Government.
(69) Exemptions from these rules -
The following buildings are subject to the provisions of the Rule 6(2) to (4) and are exempted from the operation of other provisions of these rules:-
(i) Any building which is the property of the State or Central Government.
(ii) Any building constructed, reconstructed, altered or added to or intended to be constructed, reconstructed, altered or added to by the Government in accordance with such plan and in such manner as may be approved or directed in pursuance of any statutory provisions in that behalf.
(iii) Any building constructed, reconstructed, altered or added to or intended to be constructed, reconstructed, altered, or added to, to function solely as a temporary hospital for the reception and theatre for persons suffering from infectious disease.
(70) Grant of exemptions -
(l) (a) The Government or any other authority empowered by the Government by a notification published in the Tamil Nadu Government Gazette, may either suo motu or on application exempt from the operation of all or any of the provision of these rules, for reasons to be recorded in writing, any building or any specified class of buildings provided that such application is made within sixty days from the date of receipt of the order of the executive authority against which such application is made to the Government or the authority empowered by the Government, as the case may be.
(b) The Government, may either suo motu or on appeal against any orders of the authority empowered by them, pass such orders, as deemed fit, provided such an appeal is made within thirty days from the date of receipt of the order of the authority empowered by the Government: Provided that it is open to the Government or the authority empowered by the Government, as the case may be, to condone any delay for reasons to be recorded in writing, if applications under the rule
(a) above or appeals under this clause are not made to Government or the authority empowered by the Government, as the case may be, within the prescribed time.
(2) Any exemption granted under this rule shall not be deemed to be approval or permission for construction or reconstruction of any building required by or under the Act and the appellant after getting the exemption shall obtain building permit by submitting required plans and paying fees, charges, and deposits applicable for the development.
(71) Transitory Provisions:
All applications for building permit/license pending with the local Body on or before ……….. (date) shall be disposed of in accordance with [i.e. giving the benefit of] the Building Rules then in force.
(72) Repeal and Savings
(1) Anything done or any action taken including action against unauthorized/deviated constructions, with reference to the earlier Building Rules shall be deemed to have been done or taken with reference to the corresponding provisions of these revised Building Rules and continue in force accordingly, unless and until superseded by anything done or any action taken with reference to these revised Building Rules.
(2) These rules shall not apply to the constructions in progress (as per the valid Local Body approved plans) on the date of coming into force of these rule provisions (i.e----- day,-----month----year) and the exemption is applicable till the expiry of the Building Permit/ renewal period for the above such constructions in progress. It shall also not apply in cases of buildings constructed already as per the approved plan and completion certificate /occupancy certificate is awaited from the Local Body