Buildings are classified based on occupancy and type of construction. There are 10 types of occupancies including residential, commercial, educational, and industrial. Buildings are also classified into 5 types of construction based on fire resistance: (1) fire resistive, (2) non-combustible, (3) ordinary, (4) heavy timber, and (5) wood framed. Each construction type has different fire resistance specifications for elements like exterior walls, structural frames, floors/ceilings, and roofs. The classification system considers factors like building height, materials used, and fire protection to determine a structure's resistance to fire over time.
2. Buildings classified, based on the occupancy:
• Every building or portion of land shall be classified according to its use or the character
of its occupancy as a building of Occupancy.
• They are categorized into the following types.
1) Agricultural buildings
2) Commercial buildings
3) Residential buildings
4) Educational buildings
5) Government buildings
6) Industrial buildings
7) Military buildings
8) Religious buildings
9) Transport buildings
10) Power plants
Classification of buildings
Based on occupancy
Based on type of construction.
3. Land Use Color Coding
• Residential
• Commercial
• Industrial
• Transportation
• Public - Semi-Public
• Residential
• Commercial
• Industrial
• Transportation
• Public - Semi-Public
For All india For Delhi
4. Residential
Note:
1. In the already developed plots the pattern of development should conform to the existing regulations.
2. Basement, if constructed, may be used for incidental use such as parking, servicing and household storage. It is not
to be used as a dwelling unit.
3. The area of the basement should not be more than the ground coverage.
4. Parking as per the prescribed norms should be provided with the plot or provision should be made in the layout plan
without affecting the circulation pattern.
5. Commercial
• Maximum ground coverage = 25 - 40%
• Maximum floor area ratio = 0.40 - 3.00
• Maximum Height = 15m to As per requirement
• Maximum Height in Hills = 6 – 15 m
Note :
• Ground Coverage is Min. with respect to Residential because of more parking space required.
• Basement up to the building envelope to the maximum extent of 50% plot area shall be allowed and if used for
parking and services should not be counted in FAR.
25-40%
6. Industrial
Flatted Group Industry and Service Centre
• Minimum plot size 2000 sq m.
• Maximum ground coverage 30%
• Maximum floor area ratio 1.20
• In hills 1.00
• Maximum height 15 m.
• In hills 15 m.
2000 sq m.
30 %
Light and Service industry
Note:
i) Maximum floors allowed shall be basement, ground floor and first floor; basement should be below
ground floor and to the maximum extent of ground coverage shall be counted in FAR. In case the
basement is not constructed, the permissible FAR can be achieved on the second floor.
ii) In case of roof trusses, height of buildings could be adjusted/ relaxed.
7. Extensive Industry
Other controls:
i) Single Storey building with basement is allowed. Basement shall be below the ground floor and the
maximum extent of ground coverage and shall be counted in FAR.
ii) In case of roof trusses, height of building could be adjusted/relaxed.
Note:
i) A new planned industrial area to have minimum 100 300 sqm size of plot and its width shall not
be < 15 m.
ii) For industrial plots upto 1000 sq.m, 5% of the total area shall be reserved as amenity open
space which shall also serve as general parking space. When such amenity open space exceeds
1500
sq.m, the excess area could be utilised for construction of buildings for banks, canteen, welfare
centre and such other common purposes.
iii) For industrial plots more than 1000 sq m, 10% of the total area to be reserved as amenity/
open space to a maximum of 25 sq. m.
8. Transportation
Other Controls:
i) The space on first and second floor shall be essentially used for public services like post office,
police‐post and other essential services.
ii) Bus queue shelters are not to be included in the coverage and FAR.
iii) In order to integrate the supporting commercial uses around the transportation zone, FAR can be
more for promoting mixed use.
9. Public - Semi-Public
• General
• Maximum ground coverage = 30%
• In hills = 25%
• Maximum floor area ratio = 2.00
• In hills =1.00
• Maximum height = 26 m.
• In hills =15 m.
30%
Government offices integrated office complex
• Maximum ground coverage = 30%
• Maximum floor area ratio = 2.00
• In hills =1.00
• Maximum height = 37 m.
• In hills =15 m.
Other Control:
i) The integrated office complex shall include Central Government Office, Local Government Office, Public
Undertaking Offices and Courts.
ii) Basements up to the building envelope line to the maximum extent of plot area shall be allowed and if used for
parking and services should not be counted in FAR.
DISTRICT COURT (if at all this needs to be added)
• Maximum ground coverage = 30%
• Maximum floor area ratio = 2.00
In hills = 1.25
• Maximum height = NR.
In hills = 6m
10. Health Services
Hospital/*Teritary Health care Centre
• Minimum plot area = 6000 sq m.
• Maximum ground coverage = 40% (excluding 5% additional ground coverage for muti-level parking)
• Maximum floor area ratio = 3.75
• Maximum height = NR.
Other Health Facilities ( Maternity Home / Nursing Home / Polyclinic / Dispensary etc.)
• Maximum ground coverage = 30%
• Maximum floor area ratio = 1.5
• Maximum height = 26m
Other Controls:
• Parking Standard @ 2.0 ECS/100 sq.mt. of floor area.
• *^ Natural sky light condition is exempted for Atrium and construction over the Atrium may be allowed.
• *# Height restriction of 30 mts. In Hospital Buildings should be reviewed in consultation with Fire Deptt. Of State Govt.
• Notes:
• 1. Plot area for all *Hospital/Tertiary Health Care Centre would be worked out @ 80 sq.mt. of gross floor area per bed.
However, for other health facilities like Maternity/Nursing homes, family Welfare and other centers, the plot area would
be worked out @ 60 sq.mt. of gross floor area per bed.
• 2. Maximum up to 300 sq. mt. of floor area shall be allowed to be used for community space / religious shrine / crèche /
chemist shop/ bank counter on Hospital sites and also Medical College/ Nursing and Paramedic institutes sites.
11. Educational Facilities
Nursery School
• Maximum ground coverage = 33.33%
• Maximum floor area ratio = 1.00
• In hills = 0.67
• Maximum height = 8 m.
• In hills = 6 m.
Note: Basement below the ground floor and to the maximum extent of ground coverage, and if constructed shall be
counted in FAR.
Primary School
• Maximum ground coverage = 33%
• Maximum floor area ratio = 1.20
• In hills = 1.00
• Maximum height = 15 m.
Higher Secondary School
• Maximum ground coverage = 35%
• In hills = 30%
• Maximum floor area ratio = 1.50
• In hills = 1.00
• Maximum height = 15 m.
12. College
• Maximum ground coverage = 35%
• In hills = 25%
• Maximum floor area ratio = 1.50
• In hills = 0.75
• Maximum height = 15 m.
Note:
1. In case of the above premises the total area of the plot shall be divided in
• i) School/college building area
• ii) Play field area
• iii) Parking area
• iv) Residential and hostel area
2. The maximum ground coverage and FAR shall be calculated only on the areas meant for building.
Development Controls for Other Education Facilities
Notes:
Pre-Primary Schools/Nursery Schools/Montessori Schools/Creche, Play Schools, may be permissible in residential
use premises as per Mixed use policy.
14. Based on the type of construction, buildings are classified into 5
categories.
1) Fire resistive Buildings (Type 1A , 1B)
2) Non–Combustible Buildings (Type 2A, 2B)
3) Ordinary Buildings (Type 3A, 3B)
4) Heavy timber Buildings (Type 4)
5) Wood framed Buildings (Type 5A, 5B)
15. 1)Fire resistive buildings: (Type 1A, 1B)
• These type of buildings are generally high raised, and the stoutest of all, which are
usually of more than 69 feet tall.
• They are constructed of concrete and protected steel, (coated with fire resistant
material) which are designed to hold fire.
• This type of buildings are generally residential and industrial buildings.
• The fire resistance is valid only for a specific time, depending up on the type of
construction. Let us have a look at the resistive time for Industrial and Residential
buildings.
16. Industrial buildings:
• *3 Hr- Exterior Walls.
• *3 Hr- Structural Frame.
• *2 Hr-Floor/Ceiling assembly.
• *1 ½ Hr-Roof Protection.
Residential buildings:
• *2 Hr- Exterior Walls.
• *2 Hr-Structural frame.
• *2 Hr-Ceiling/Floor Separation.
• *1 Hr-Ceiling/Roof assembly.
It means that according to the time given above, the building is resistant towards fire,
and after the specified time it must be super viewed by the fire control authorities.
17. 2)Non- combustible buildings:( Type 2A,2B)
• These buildings are generally the new buildings and remodels of commercial
structures.
• The walls and roofs are constructed of non- combustible materials.(i.e. walls are rein
forced masonry and the roofs have metal structural members) .
• The top of the roofs are covered with light weight concrete etc.
Protected Non-combustible.(common in school buildings)
*1 Hr-Exterior Walls
*1 Hr-Structural Frame
*1 Hr-Floor/Ceiling/Roof Protection
Unprotected Non-combustible.(common in commercial buildings):
These Buildings are constructed of noncombustible materials but these
materials have no fire resistance.
18. 3)Ordinary buildings:(Type 3A,3B)
These buildings may be of old or newer constructions. They have non-combustible
walls and wooden roof.
Older constructions may have un rein-forced masonry and have conventionally framed
roof, while newer houses have light weight roof systems, supported by R.C.C masonry
or tilt slab.
The walls and the roofs are 1 hour fire protected.
Ordinary buildings are of the other type also, which is unprotected combustible. walls
are of a wooden roof and the floor assembly is not protected against fire.
These buildings are frequently found in "warehouse“, districts of older cities.
Specifications:
*2 Hr. Exterior Walls
*No fire resistance for structural frame, floors, ceilings, or roofs.
19. 4) Heavy Timber :
These buildings were most commonly built before 1960, when bolts and metal plates
were used as connectors.
It utilizes large dimensional lumber for structural members and interior elements. These
buildings hold up well under fire conditions.
It is critical that, as these buildings are often poorly maintained, or have termites, the
weathering issues contributes an earlier-than-expected collapse.
To qualify the structure, all wooden members must have a minimum nominal dimension
of 8 inches.
Specifications:
*2 Hr. Exterior Walls
*1 Hr. Structural Frame or Heavy Timber (Heavy Timber Floor/Ceiling/Roof Assemblies)
20. 5)Wood framed buildings: (Type 5A,5B)
This type of construction is found in many modern homes. The walls and roofs are
made of combustible materials—most commonly wood.
It has a few negative characteristics:
It is not highly fireproof, as it is made of wood.
It is not strong enough to resist major wind events such as tornadoes and
hurricanes.
Protected Wood Frame:
It is Commonly used in the construction of newer apartment buildings; there is no
exposed wood visible.
1 Hr. Exterior Walls
1 Hr. Structural Frame
1 Hr. Floor/Ceiling/Roof
Unprotected Wood Frame:
It is used commonly at single family homes and garages. They often have exposed wood
so there is no fire resistance.