Building Bylaws Guide — Mumbai, Delhi, Bangalore (2026)

Why This Matters for Contractors

Building bylaws determine everything you can and cannot build on a plot — floor area, height, margins, parking, fire safety provisions, and use classification. A contractor in Mumbai who miscalculates fungible FSI may end up with 200 sq m of unauthorized construction, facing demolition or a penalty of ₹40-50 lakh. In Delhi, constructing a fourth floor without proper FAR entitlement on a mixed-use street can lead to sealing by the MCD enforcement wing. In Bangalore, exceeding TDR limits or violating setback norms results in BBMP stop-work orders and personal liability on the site engineer.

For any project in these three cities — which together account for over 40% of India's urban construction value — understanding the applicable bylaws is not optional. The difference between a profitable project and a legal nightmare often comes down to correctly reading the FSI/FAR table and setback schedule before the first design drawing is finalized.

Who Needs to Comply / What It Is

Building bylaws are local regulations that govern the physical parameters of construction. They are issued by:

• Mumbai: Municipal Corporation of Greater Mumbai (MCGM) through the Development Control and Promotion Regulations (DCPR) 2034
• Delhi: Delhi Development Authority (DDA) through the Master Plan for Delhi 2041, supplemented by Unified Building Bylaws
• Bangalore: Bruhat Bengaluru Mahanagara Palike (BBMP) through the Revised Master Plan 2031 and Zonal Regulations

Every person or entity undertaking construction — individual house owner, developer, contractor, government department — must comply with the applicable bylaws. The building plan approval process verifies compliance before construction permission is granted.

Step-by-Step Process

Step 1: Identify Applicable Authority and Bylaw

Determine which authority governs your plot:

City	Primary Authority	Bylaw Document	Key Reference
Mumbai	MCGM / MMRDA / SRA / MHADA	DCPR 2034	mcgm.gov.in
Delhi	DDA / MCD / NDMC	MPD 2041 + UBL	dda.gov.in
Bangalore	BBMP / BDA	RMP 2031 + Zonal Regs	bbmp.gov.in

Step 2: Determine Permissible FSI/FAR

Check the zoning of your plot (residential, commercial, industrial, mixed-use) and the applicable FSI/FAR:

Mumbai — DCPR 2034:

Zone	Base FSI	Premium FSI (on payment)	Max Achievable FSI
Island City (residential)	1.33	Up to 1.33 additional	2.66
Suburbs (residential)	1.0 - 2.0	Up to 1.0 additional	3.0
Commercial	1.5 - 3.0	Up to 1.5 additional	5.0 (in designated commercial zones)
Slum Rehabilitation	3.0 base	Additional incentive FSI	4.0+

Fungible FSI (Mumbai-specific): An additional 35% of base FSI for residential and 20% for commercial is available on payment of premium. This covers flower beds, service floors, staircases, and passages that were previously excluded from FSI calculation.

Delhi — Master Plan 2041:

Plot Use	Plot Size / Road Width	FAR
Residential (plotted)	Up to 150 sq m	1.5
Residential (plotted)	150-500 sq m	2.0
Residential (group housing)	Above 3,000 sq m, road >24m	3.0 - 3.5
Commercial	Road >30m	3.0 - 3.5
Mixed Use	Designated streets	Enhanced FAR as notified
Industrial	As per MPD zoning	1.5 - 2.0

Ground coverage in Delhi: Maximum 75% for plots up to 150 sq m; 50%-66% for larger plots depending on use.

Bangalore — BBMP Bylaws / RMP 2031:

Road Width	Residential FAR	Commercial FAR
Below 12m	1.75	2.0
12m - 18m	2.25	2.5
18m - 24m	2.75	3.0
24m - 30m	3.0	3.25
Above 30m	3.25	3.5

TDR (Transfer of Development Rights) in Bangalore: Additional FAR of up to 50% of base FAR can be obtained by purchasing TDR certificates from landowners who have surrendered land for road widening, parks, or civic amenities. TDR is traded in the open market; prices vary from ₹1,500 to ₹4,000 per sq ft depending on location.

Step 3: Apply Setback Requirements

Setbacks are mandatory open spaces that cannot be constructed upon (except for compound walls, security cabins, and permitted projections):

Mumbai Setbacks (DCPR 2034):

Building Height	Front	Side	Rear
Up to 15m	3.0m	3.0m	3.0m
15m - 24m	4.5m	3.0m	3.0m
24m - 36m	6.0m	4.5m	4.5m
36m - 50m	9.0m	6.0m	6.0m
Above 50m	12.0m	6.0m - 9.0m	6.0m - 9.0m

Delhi Setbacks (UBL):

Plot Size	Front	Side (each)	Rear
Up to 50 sq m	1.5m	Nil	1.5m
50-100 sq m	3.0m	Nil	1.5m
100-500 sq m	3.0m	3.0m	3.0m
500-1000 sq m	6.0m	3.0m	3.0m
Above 1000 sq m	9.0m	6.0m	6.0m

Bangalore Setbacks (BBMP):

Building Height	Front	Side (each)	Rear
Up to 7m (G+1)	1.5m	1.5m	1.5m
7m - 11.5m (G+2)	3.0m	2.0m	2.0m
11.5m - 15m (G+3)	3.0m	3.0m	3.0m
Above 15m (highrise)	6.0m	4.5m - 6.0m	4.5m

Step 4: Check Height Restrictions and Parking Norms

Height restrictions are governed by proximity to airports (Airport Authority of India NOC required within the funnel zone), defense installations, and local bylaws. Mumbai restricts height based on road width (generally 1.5x road width plus setback). Delhi has specific height limits per zone. Bangalore applies height limits based on road width and plot size.

Parking requirements:

City	Residential	Commercial
Mumbai	1 car park per tenement (up to 45 sq m); additional for larger units	1 per 70 sq m of commercial area
Delhi	1 ECS per DU (up to 50 sq m); 1.5-2 ECS for larger units	1 ECS per 30-50 sq m
Bangalore	1 car park per residential unit; 2 for units above 150 sq m	1 per 65 sq m of office space

(ECS = Equivalent Car Space; DU = Dwelling Unit)

Step 5: Fire Safety Compliance

All three cities mandate fire safety provisions for buildings above 15m height:

• Fire NOC from the city fire department before occupancy
• Refuge areas on every 5th or 7th floor (varies by city)
• Fire staircases (minimum 2 for buildings above 15m)
• Fire lift (minimum 1 for buildings above 24m)
• Automatic sprinkler system for buildings above 30m (Mumbai) or 24m (Delhi)
• Fire tender access road: minimum 6m wide

State-Wise Variations

Beyond the three metro cities, building bylaws vary significantly:

• Hyderabad (GHMC): FAR 1.5-2.5; integrated with TS-BPASS; height linked to road width
• Chennai (CMDA): FSI 1.5-2.0 for residential; premium FSI available; strict CRZ enforcement along coastline
• Pune (PMC): Follows Maharashtra DCPR with local modifications; FSI 1.1-2.5; premium FSI and TDR applicable
• Kolkata (KMC): FAR 2.0-3.5 for residential; heritage zone restrictions in central areas
• Ahmedabad (AMC/AUDA): FAR 1.2-2.4; TDR system for road-widened plots; relatively permissive height norms

Penalties for Non-Compliance

Violation	Mumbai	Delhi	Bangalore
Excess FSI/FAR construction	Penalty of 2-5 times market value of excess area; demolition if not compoundable	Sealing by MCD enforcement; fine up to ₹50 lakh; demolition	Stop-work order; fine up to ₹25 lakh; demolition
Setback violation	Demolition of encroaching portion; fine up to ₹10 lakh	Sealing + fine; no regularization for front setback violations	Demolition order from BBMP; penalty linked to area
Unauthorized additional floor	Demolition; criminal case under MRTP Act; penalty up to ₹1 crore	Sealing; FIR under Delhi Municipal Corporation Act; fine + imprisonment up to 1 year	BBMP demolition notice; fine up to ₹10 lakh
Change of use without permission	Regularization fee (if eligible) or sealing	Sealing of commercial use in residential zone; fine up to ₹5 lakh	Stop use order; penalty per month of violation
Fire safety non-compliance	Property sealed until compliance; fine up to ₹25 lakh; criminal liability if accident occurs	Sealing + fine; DFSLO can close the building	Building locked by fire department; fine + criminal prosecution

Practical Checklist

• Identify the governing authority and applicable bylaw document for your plot
• Obtain the zoning certificate or land use certificate for the plot
• Calculate permissible FSI/FAR based on zone, road width, and plot area
• Check eligibility for premium FSI, fungible FSI, or TDR (city-specific)
• Apply setback requirements based on building height and plot dimensions
• Verify height restriction — airport funnel zone, defense area, and local limits
• Calculate parking requirement as per applicable norms
• Ensure fire safety provisions for buildings above 15m
• Get architect to prepare building plans in compliance with all bylaws
• Submit plans through the local body's online portal
• Obtain NOCs — fire, environment, airport (if applicable), traffic (if applicable)
• Do not commence construction until building plan approval is received
• During construction, ensure no deviation from approved plans
• Apply for Occupancy Certificate upon completion with as-built drawings

Common Mistakes to Avoid

1. Calculating FSI on Gross Plot Area Instead of Net Plot Area

In Mumbai, FSI is calculated on the net plot area after deducting road widening surrenders, recreational ground reservations, and DP road setbacks. A developer who calculates FSI on gross area may end up with 15-20% excess construction, facing demolition or compounding fees running into crores.

2. Ignoring Fungible FSI Payment (Mumbai)

Fungible FSI in Mumbai is not automatic — it requires payment of premium to MCGM. Constructing flower beds, wider staircases, or service floors claiming fungible FSI without paying the premium constitutes unauthorized construction. The premium can range from ₹2,000 to ₹25,000 per sq m depending on the zone.

3. Treating Delhi Mixed-Use FAR as Universal

Delhi Master Plan 2041 allows enhanced FAR on designated mixed-use streets. Developers sometimes apply this enhanced FAR to plots on streets that are not notified as mixed-use, resulting in excess construction that gets sealed by MCD. Always verify the mixed-use notification for your specific street before relying on enhanced FAR.

4. Exceeding TDR Limits in Bangalore

TDR in Bangalore is capped at 50% of base FAR. Some developers purchase excess TDR expecting to use it all, only to find the building plan rejected. Additionally, TDR can only be used in specified receiving zones — not all areas of the city accept TDR loading. Verify the zonal regulation before purchasing TDR certificates.

5. Neglecting As-Built Drawing Submission

All three cities require as-built drawings at the OC stage that match the approved plan. Deviations discovered during OC inspection — even minor ones like a balcony projection 0.5m beyond the approved line — can delay OC by months or require regularization with penalties. Conduct periodic plan-vs-construction checks during the project.

For the building plan approval process, see our Building Plan Approval State Guide. For environmental clearance requirements that may apply to large projects, refer to our Environmental Clearance Guide.