Requirements parts of Buildings// purpose of an Architectural plan

For a details of building plan its requirements are very much necessary. 

• Plinth

1.   The plinth or any part of a building or any accessory building shall be so located with respect to the crest of the road level that adequate drainage of the site is assured and in no case it shall be at a height less than 60 cm.

2.   Garage and Parking space shall be raised at least 15 cm above crest of the road of the level of the highest street and shall be satisfactorily drained.

3.   Every inner courtyard shall be raised at least 30 cm. above the level of the highest crest of the road of the nearest street and shall be satisfactorily drained.

4.   In case of re habitation of tenants for shop or any habitable room or for new shop in the   ground floor in excess of mandatory car parking space, a plinth height of 30.0 cm. may be   allowed.

•  Habitable Room

1.   No habitable room shall have a floor area of less than 6 sq. m.

2.   No habitable room shall have a width less than 2.4 m.

3.   No habitable room shall have a height less than 2.90 m. measured from the surface of the floor to the lowest point of the ceiling or underside of any slab.

4.   In case of air-conditioned building, the height of any habitable room shall not be less than 2.4 m. measured from the surface of the floor to the underside of any slab or false ceiling as the case may be.

•   Kitchen

 No kitchen shall have a floor area of less than 4.5 sq. m. and width less than 1.5 m. Provided that, if any kitchen is to be used for eating purposes such floor area shall not be less than 9.5 sq. m. and the width shall not be less than 2.4 m.

 No kitchen shall have a height less than 2.5 m. measured from the surface of a floor to the   lowest point in the ceiling or underside of any slab except for the portion to accommodate   any floor trap for any upper floor.

       Every room to be used as a kitchen shall have: -

a.     Unless separately provided with a pantry, an area meant for the washing of     kitchen utensils which lead directly or through a sink to a grated and trapped   connection to a waste pipe.

b.   An impermeable floor

c.   A window not less than 1 sq.m. in the area opening directly to an interior or exterior open space, or in to any shaft.

d.   A flue duct, if necessary.

• Bathroom and Water closet

 1.  No Bathroom shall have a floor area of less than 1.8 sq.m. a width less than 1.2 m. and height less than 2.1 m. measured from the surface of a floor to the lowest point of the ceiling or underside of any slab. Provided that it a combined bathroom and water closet such floor area shall not be less than 2.6 sq.m.

2.   No water closet shall have a floor area of less than 1.2 sq.m. and a width less than 1.0 m.

3.   An independent bathroom shall have a floor area of 1.45 sq.m.

4.   A combined bathroom and water closet shall have a floor area of 2.4 sq.m. with a minimum width of 1.1 m.

Every Bathroom or water closet shall-

a.    Be so situated that at least one of its walls shall face an interior open space or exterior open space or shaft and shall have an opening in the form of a window or ventilator not less than 0.40 sq.m. in area.

b.   Not be directly over any room other than a latrine or water closet or washing place unless it has a water tight floor.

c.    Have the platform of seat made of water tight non-absorbent materials.

d.   Be enclosed by walls or partitions and the surface of every such wall or partition shall be finished with a smooth impervious material to a height of not less than 1 m. above the floor of such a room.

e.   Be provided with a door completely closing the entrance to it

f.   Be provided with an impervious floor sloping towards any drain with a suitable gradient             

 Lifts

1.   At least one lift shall be provided in every building more than 12.5   m. in height.

2.   In case of buildings more than 20 m. in height, and 1000 sq.m. of   floor area for each floor at least two lifts shall be provided.

3.   In the case of a proposal to add one additional floor to an existing building having a lift, it will not be necessary to raise the existing lift to the additional floor.

Loft

  A loft may be permitted in buildings of all use-groups

  The area of any such loft shall be restricted to 25 percent of the area of the floor of any room provided that 100% of the area may be covered over any corridor.

  Maximum height between any loft and ceiling shall be 1.20 m. and the clear height below the loft shall not be less than 2.10 m.

 

    Ledge or tend

A ledge or tend in habitable room shall not cover more than 15 percent of the floor on which it is constructed and shall not interfere with the ventilation of the room under any circumstance

The ledge shall be provided at a minimum height of 2.1 m. from floor level

 The maximum width of any ledge or tend shall be 0.60 m.

           

            Mezzanine floor

1.   A mezzanine floor may be permitted to be used for any purpose the use conforms to the relevant rules.

2.   It conforms to any standard for a habitable room as regards lighting and ventilation.

3.   It is so constructed not to interfere under any circumstance with the ventilation of the space over and under it.

4.   Such mezzanine floor is not subdivided in to smaller compartments.

5.   An area up to 25 percent of the covered area on the particular floor shall be permitted for construction of mezzanine floor.

Service floor

For the purpose of plumbing, electrical and other utility services in case of buildings the number of service floors in between two floors and their respective heights may be as approved by the Mayor in council upon recommendation of Municipality Building Authority.

 

 Store Room

No store room in any residential building shall have a floor area less than 1.5 sq. m. and a height less than 2.1 m.

 

Garage

No garage shall be less than 2.5 m. X 5 m.

The minimum head room in a garage shall be 2.1 m. and floor level of the garage at ground floor must not be lower than ground level.

The size of any garage where more than one motor car is parked shall be calculated on basis of the number of vehicles.

 

 Roof

The roof of a building shall be so constructed or framed as to permit effectual of the rain water therefrom by means of sufficient rain water pipes of adequate size, whenever required so arranged, joined and fixed as to ensure that the rain water is carried away from the building without causing dampness in any part of the walls or foundations of the building or those of an adjacent building. The Municipal Commissioner may require rain water pipes to be connected to a drain or sewer through a covered channel formed beneath any street to connect the rain water pipe to a road gutter.

Rain water pipes shall be affixed to the outside walls or through pipe shaft of the building or in recesses or in chases cut or formed in such walls or in such other manner as may be approved by the Municipal Commissioner.

Every terrace on the topmost storey of any building shall have a common access and shall not be subdivided.

 

Basement

A Basement is used for the following purposes__

1.   As a parking space

2.   As an air-conditioning plant room or room for other machines.

3.   As a storage space

4.   As a strong room or as a bank cellar

5.   As a dark room

6.   As a stack room in any library.

Every Basement shall have-

In every part be at least 2.1 m. in height from the floor to the underside of the false ceiling.

Have adequate arrangement so that surface drainage does not enter the basement and have adequate arrangement for pumping out water, if necessary, by providing sump pit.

If the basement is not used for car parking purposes, ramps will not have to be provided. In such cases, at least two staircases of minimum width as per use group shall have to be provided and such staircase shall be enclosed type.

Chimney

Any chimney shall be built at least 0.9 m. above any roof.

   Provided that the top of any chimney shall not be below the top of any adjacent wall and in the case of a sloping roof, the top of the chimney shall not be less than 0.6 m. above the ridge of the roof in which the chimney penetrates.

 

Parapet

A Parapet and guardrails shall be provided on the edge of any roof terrace or balcony and it shall not be more than 1.5 m. in height on average.

Lighting and Ventilation of Rooms

Every habitable room, kitchen, staircase and bathroom or water-closet shall have, for the admission of light and air one or more apertures such as windows, glazed doors, fans and lights, opening directly to the external wall or into an open veranda.

In any case where light 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 latest provisions on building service of the latest edition of the national building code of India.