Building Bye Laws for Residential Buildings
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The document outlines building bye-laws for residential buildings in India, established for the health, safety, and quality of life of occupants. It details requirements such as open spaces, room dimensions, and specifications for various building components like kitchens, bathrooms, and staircases, referring to the National Building Code of India 2016. Compliance with these regulations is mandated by central and local authorities to ensure proper construction practices.
Building Bye Laws for Residential Buildings
- 1. Rohan Dasgupta Building Bye – Laws for Residential Buildings
- 2. 1. What are building bye-laws? - set of rules and regulations for proper planning, designing and layout of buildings 2. Why do we need building bye-laws? - to ensure health, safety and quality of life for the buildings’ occupants 3. Who imposes the building bye-laws? - imposed by the Central Government of India as well as local authorities (like municipalities, town planning department etc.)
- 3. Reference: National Building Code of India 2016 Volume: 1 Part: 3 Development Control Rules and General Building Requirements
- 4. 1. Open Spaces within a Plot: i) Front Open Space: Width of Street in front of the Plot Minimum Front Open Space up to 7.5 m 1.5 m 7.5 m to 18 m 3.0 m 18 m to 30 m 4.5 m above 30 m 6.0 m PlotBuilding Front Open Space Width of the Street in Front of the Plot Plot For streets less than 7.5 m in width, the distance of the front side of the building should be at least 5 m from the centre-line of the street. Ref: Clause 8.2.1.1. of NBC of India 2016 (Vol. 1, Part 3) pg. 34
- 5. 1. Open Spaces within a Plot: ii) Rear & Side Open Spaces: PlotBuilding Plot Rear Open Space Height of the Building Minimum Rear & Side Open Spaces up to 10 m 3 m up to 15 m 5 m up to 18 m 6 m up to 21 m 7 m up to 24 m 8 m up to 27 m 9 m up to 30 m 10 m up to 35 m 11 m up to 40 m 12 m SideOpenSpace SideOpenSpace
- 6. 1. Open Spaces within a Plot: ii) Rear & Side Open Spaces: PlotBuilding Plot Rear Open Space Height of the Building Minimum Rear and Side Open Spaces up to 45 m 13 m up to 50 m 14 m up to 55 m 16 m up to 70 m 17 m up to 120 m 18 m above 120 m 20 m Ref: Clauses 8.2.1.2. and 8.2.1.3. of NBC of India 2016 (Vol. 1, Part 3) pg. 35 SideOpenSpace SideOpenSpace
- 7. 2. Plinth Height: minimum 450 mm 3. Habitable Rooms (Drawing Room, Living Room, Dining Room, Bedroom etc.): - Minimum height (distance between floor and ceiling) = 2.75 m - For one room only, minimum area = 9.5 m2 and minimum width = 2.4 m - For two rooms, minimum area of one room = 9.5 m2, minimum area of the other room = 7.5 m2 and minimum width = 2.1 m Ref: Clauses 12.1.1., 12.2.1. and 12.2.2. of NBC of India 2016 (Vol. 1, Part 3) pg. 43 & 44
- 8. 4. Kitchen: - Minimum height = 2.75 m - For kitchen -cum- dining area, minimum area = 7.5 m2 and minimum width = 2.1 m - For kitchen with separate dining area, minimum area = 5 m2 and minimum width = 1.8 m - For kitchen with separate store room, minimum area = 4.5 m2 Ref: Clauses 12.3.1. and 12.3.2. of NBC of India 2016 (Vol. 1, Part 3) pg. 44
- 9. 5. Bathrooms and Water Closets: - Minimum height = 2.1 m - For bathroom -cum- water closet, minimum area = 2.8 m2 and minimum width = 1.2 m - For bathroom, minimum area = 1.8 m2 and minimum width = 1.2 m - For water closet, minimum area = 1.1 m2 and minimum width = 0.9 m Ref: Clauses 12.4.1. and 12.4.2. of NBC of India 2016 (Vol. 1, Part 3) pg. 44
- 10. 5. Bathrooms and Water Closets: - Other Requirements: • At least one of its wall shall open to external air. • Bathrooms and water closets should not be over or under any room other than sanitary units or terrace, unless it has a water-tight floor. • Its walls should be finished with a smooth impervious layer to a minimum height of 1 m above the floor. • It should have a window or ventilator, opening to a shaft or open space, of minimum area 0.3 m2 and minimum side 0.3 m. Ref: Clauses 12.4.3. and 12.4.4. of NBC of India 2016 (Vol. 1, Part 3) pg. 44
- 11. 6. Staircase: - Minimum tread = 300 mm - Maximum riser = 150 mm - Maximum number of risers per flight = 12 - Minimum headroom = 2.2 m - Minimum width of one stair = 1 m - Minimum width of mid-landing >= width of one stair Ref: Clauses 12.4.1. and 12.4.2. of NBC of India 2016 (Vol. 1, Part 3) pg. 44
- 12. 7. Lighting and Ventilation of Rooms: - The minimum area of openings (excluding doors and including frames) = • 1/10th of the floor area for hot-dry climate • 1/6th of the floor area for warm-humid climate • 1/8th of the floor area for temperate and composite climate • 1/12th of the floor area for cold climate - If a window is partially fixed, only the openable area shall be counted. - No portion of a room shall be assumed to be lighted, if it is more than 7.5 m away from the opening assumed for lighting that portion. - In case of kitchen, the above areas should be increased by 25%. Ref: Clauses 20.1.2. of NBC of India 2016 (Vol. 1, Part 3) pg. 57
- 13. 8. Garage and Parking: - Minimum height of garage = 2.4 m - Minimum size of garage = 3.0 m x 6.0 m - Minimum parking space for bicycle = 1 m2 - Minimum parking space for scooter/two-wheeler = 1.5 m2 - Minimum parking space for car (inclusive of circulation area) = 23 m2 for open parking = 28 m2 for ground floor covered parking = 32 m2 for basement Ref: Clauses 12.8. and 10.3 of NBC of India 2016 (Vol. 1, Part 3) pg. 45 and 42
- 14. 9. Parapet Wall and Handrails: - Parapet walls and handrails on the edges of roof terraces, balcony, verandah etc. shall not be less than 1.0 m and not more than 1.2 m in height from the finished floor level. Ref: Clauses 12.11. of NBC of India 2016 (Vol. 1, Part 3) pg. 46Image courtesy: www.constructor.com
- 15. 10. Boundary Wall: - Maximum height of the compound wall = 1.5 m above the centre-line of the front street - Compound wall up to 2.4 m height may be permitted if the top 0.9 m is of open type construction of a design approved by the Authority Ref: Clauses 12.13. of NBC of India 2016 (Vol. 1, Part 3) pg. 46
- 16. Thank you instagram.com/rohandasguptaofficialfacebook.com/rohandasguptaofficial linkedin.com/in/rohandasguptaofficial - Rohan Dasgupta youtube.com/c/rohandasguptaofficial