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 SPECIFICATIONS OF PARTS OF BUILDINGS - CHAPTER -VI
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TABLE – 12
SIZE OF BATHROOM AND WATER CLOSET IN HOUSING FOR ECONOMICALLY WEAKER SECTION
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Type
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Minimum Dimension in m.
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(i) Bathroom
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1.3 x 1.1
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(ii) Water Closet
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1.1 x 0.9
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(iii) Combined Bathroom and Water
Closet.
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1.8 x 1.1
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6.2.3 The height of a bathroom or water closet measured from the surface of the floor to the lowest point in the ceiling shall not be less than 2.2m.
6.3 STORE ROOM:
6.3.1 The area of a storeroom in a residential building shall not be more than 3.0 sq.m.
6.3.2 The height of a storeroom shall not be less than 2.2 m.
6.4 BASEMENT:
6.4.1.1. No basement shall be constructed in the marginal open spaces and setbacks provided for a building.
6.4.2 Basement may be put to the following uses only:
6.4.2.1 Storage of house-hold or other goods of ordinarily non-combustible material and ancillary storage to main users;
6.4.2.2 Strong Rooms and lockers of banks;
6.4.2.3 Air conditioning equipment and other machines used for services and utilities of the building, except transformers;
6.4.2.4 Parking of vehicles;
6.4.2.5 In the case of basement used for any purpose other than that mentioned above it's built-up area shall be counted towards FSI.
6.4.3 Other requirements
6.4.3.1 The minimum and maximum height of the ceiling of any basement shall be 0.9 m. and 1.2 m. respectively above the average surrounding ground level. Further only one storey of basement shall be permitted. The area of window provided for ventilation shall not be less than 10% of the floor area.
6.4.3.2 Adequate arrangements shall be made to ensure that surface drainage does not enter the basement.
6.4.3.3 The walls and floors of the basement shall be watertight and be so designed that the effect of the surrounding soil and moisture, if any, is taken into account in design and adequate damp proofing treatment is given
6.4.3.4 The access to the basement shall be independent of the main entrance of a building. Separate staircase providing access and exit may be provided. Where the staircase is continuous, the same shall be of enclosed type serving as a fire separation for the basement floor and higher floors. Ramps to the basement shall be permitted in the open spaces except the front open spaces subject to the provision of 6.4.3.2. Car lifts may also be provided in addition to or in lieu of ramps when basement is proposed for vehicular parking.
6.4.3.5 No part of the basement shall exceed 2.4 m. in height from the floor to the underside of the roof slab or ceiling. More height will be allowed subject to the area being counted towards F.S.I.
6.5 PLINTH:
6.5.1 The minimum height of plinth for any building shall be 60 cm above the surrounding ground.
6.5.2 Interior courtyards, covered parking and garages shall be raised at least 15 cm. above the surrounding ground level and shall be satisfactorily drained.
6.6 STILT:
6.6.1 A stilt portion shall be permitted on ground only, The height between ground floor level and ceiling of the stilt portion shall not be more than 2.4 m. and at least three sides of the stilt portion shall be open. The stilt portion shall not be used for any purpose other than parking of vehicles or as play area. Plinth of stilt shall be 15 cm. above the surrounding ground level. A ramp shall be provided to facilitate movement of vehicles.
6.6.2 In the case of buildings intended for educational purpose, or for utilities like fire brigade stations, etc stilt with more height shall be permitted, without payment of any premium.
6.6.3 Any violation in the maximum height mentioned above will lead to counting the stilt area in the built up area.
6.7 MEZZANINE FLOOR :
6.7.1 Mezzanine floor may be permitted only on ground floor and its area shall be counted towards F.S.I.
6.7.2 Aggregate area of the mezzanine floor shall not exceed 50% of the built up area of that floor. The minimum size of a mezzanine floor, if it is used as a habitable room, shall not be less than 9.5 sq.m.
6.7.3 Minimum headroom of a mezzanine floor shall be 2.2 m.
6.7.4 A mezzanine floor may be permitted provided that -
i) It conforms to the standards of habitable rooms as regards light and ventilation.
ii) It is so constructed as not to, affect the ventilation of the spaces over and under it.
iii) No part of it is used as a kitchen.
iv) It is at least 1.8 m. away from the front wall of a habitable room.
v) It is accessible only from within the respective room below the same.
6.8 LOFT:
6.8.1 Loft provided in habitable rooms, kitchens or over bathrooms and corridors
or in shops and industrial buildings shall be subject to following :
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TABLE – 13
MAXIMUM DEPTH AND COVERAGE OF LOFTS
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Sr.no
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Rooms over which loft is permitted
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Maximum Coverage as percentage to area of room below
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Max. Depth in m.
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1.
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Kitchen/habitable room.
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25.00 %
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0.75
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2.
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Bathroom, water closet, corridor.
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100.00 %
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2.00
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3.
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Shops with depth upto 3 m
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33.33 %
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1.00
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4
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Shops with depth exceeding 3 m.
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50.00 %
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2.00
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5.
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Industrial
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33.33 %
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3.00
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Provided that -
(a) Lofts in commercial or industrial buildings shall be located at least 2 m. away from the entrance;
(b) Loft area shall not be considered in built up area computation, if it is in accordance with these regulations.
6.8.2 The clear headroom under the loft shall not be less than 2.2 m. and the headroom above the loft shall not be more than 1.5 m. If it exceeds 1.5 m. it shall be counted towards F.S.I.
6.8.3 Projections for cupboards
Cupboards , either under the window sill or above the window lintel level may project upto 0.75 m. in the marginal open spaces for residential buildings, provided their width does not exceed 2.4 m. and there is not more than one such cupboard/shelf in each room.
6.9 BALCONY:
6.9.1 In any residential building including lodging houses, balconies may be permitted with a minimum width of 0.9 m. and a maximum width of 1.5 m.
6.9.2 Balconies shall be allowed only on the floor above the ground floor. No balcony shall be at a height less than 2.2m. above the ground level.
6.9.3 However, balconies and otlas may be allowed on the ground floor if the building line inclusive of the balcony or otla fulfills the statutory marginal open space requirements.
6.9.4 Balconies/otlas are allowed to be enclosed, provided light and ventilation for the room, to which they are attached, is not compromised.
6.10 REVAS PROJECTION:
6.10.1 A revas projection of maximum width of 1.20 m may be permitted in the front, side and rear marginal open spaces provided required marginal open spaces are left from such projection.
6.10.2 No revas projection shall be at a height less than 2.2 m above the ground level.
6.10.3 Areas of all revas projections excepting staircase projection shall be taken into account for the computation of built up area.
6.11 ROOF:
6.11.1 The roof of a building shall be so constructed or framed as to permit effective drainage of the rain-water by means of sufficient rain-water pipes of adequate size, so as not to cause dampness in any part of the walls or foundations of the building or those of an adjacent building.
6.11.2 The Competent Authority may require rain water pipes to be connected to a drain through a covered channel formed beneath the public footpath or in any other manner.
6.12 LIGHTING AND VENTILATION OF ROOM:
6.12.1 Adequacy and manner of provision -
6.12.1.1. All habitable rooms including kitchen shall have for the admission of light and air, one or more apertures, such as windows opening directly to the external air or into an open verandah not more than 2.4 m. in depth.
6.12.1.2. The minimum aggregate area of openings of habitable rooms and kitchens excluding doors shall be not less than 1/6 of the floor area. However a staircase shall be deemed to be adequately lighted and ventilated if it has one or more openings, on the external wall, having size of at least 1.00 sq.m. per landing.
6.12.1.3. Minimum opening of 1.00 sq.m. area in any habitable room including a kitchen, and 0.3 sq.m. with one dimension of 0.3 m. for any bathroom, water closet, store or pooja room, shall be provided.
6.12.1.4. No part of a habitable room including kitchen shall be assumed to be lighted and ventilated if it is more than 7.5.m. away from the opening assumed for lighting that portion. However, room meant for non-residential uses shall be considered as adequately lighted and ventilated if its depth from the side abutting the required open spaces does not exceed 12 m.
6.12.1.5. Where the lighting and ventilation requirements are not met through day lighting and natural ventilation, the same shall be ensured through artificial lighting and mechanical ventilation as per the provisions of the National Building Code of India. (Part VIII building, services, sections and light and ventilation.)
6.12.1.6. In the case of special types of buildings requiring artificial lighting and air conditioning for special types of manufacturing or other process, the requirements regulating natural day lighting and ventilation may be suitably relaxed by the Competent Authority.
6.12.2 Ventilation shaft -
A bathroom, water closet, staircase or store may abut the ventilation shaft, the size of which shall not be less than that given below : -
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