Redevelopment
Overview
📌 1) Regulation 33(7A) — Redevelopment of Dilapidated/Unsafe Buildings
What it covers?
Applies to authorized tenant-occupied buildings in the Suburbs & Extended Suburbs and existing authorized non-cessed tenant occupied buildings in Mumbai City.
Key features
Rehabilitation FSI + incentive FSI
FSI available = FSI needed for rehabilitation of existing lawful tenants + 50% incentive FSI.
For composite plots (tenant + non-tenant buildings), the already authorized FSI of the non-tenanted part is also counted in total.
Additional rehab carpet area: Eligible tenants may get extra carpet area (e.g., ~5–8% depending on configuration).
This encourages redevelopment of older dilapidated structures while ensuring tenants are rehoused with incentives.
📌 2) Regulation 33(7B) — Additional FSI for Housing Societies
What it covers
Applies to existing residential housing societies (≥ 30 years old) that are not covered under:
33(7) (cessed buildings) or
33(7A) (dilapidated tenant/authorized buildings)
Main incentives
Additional FSI/BUA for redevelopment:
15% of the existing Built-Up Area (BUA) OR 10 m² per tenement, whichever is higher, is granted as incentive without premium.
If this additional BUA plus existing BUA is still below the permissible FSI (based on road width), the society can avail more FSI by paying premium/TDR up to that limit.
Staircase, lift, lobby areas may be treated favorably for FSI calculations (free of FSI or adjusted via premium rules).
Existing members must be re-accommodated for the incentive to apply.
What this achieves
Encourages self-redevelopment of older co-operative societies by giving incremental built area, improving viability without high premiums.
📌 3) (Context) Regulation 33(7) — Cessed Buildings (For Comparison)
Although your question focused on 33(7A) and 33(7B), it helps to contrast:
Applies to cessed buildings (often in Island City) under MHADA framework.
Offers FSI = 3.0 of gross plot area OR Rehab + Incentive FSI (50–70% depending on plot clustering), with additional rehab carpet area for larger schemes.
📌 4) Circular/Guideline Context for Implementation
The Municipal Corporation of Greater Mumbai (MCGM) (BMC) and Project Maitree provide circulars and guideline notes explaining how to apply these regs and how FSI caps, premium/TDR, and incentives work in practice.
Separate guidelines (e.g., Guidelines for 33(12)(B)) deal with implementation mechanics, including FSI caps and process clarifications for related redevelopment provisions under DCPR.
📌 Quick Comparison (At a Glance)
Regulation Applies To Key Benefit
33(7A) Dilapidated/unsafe authorized tenant & non-cessed buildings Rehab FSI + 50% incentive (plus extra carpet area)
33(7B) Existing residential housing societies (excluding 33(7)/33(7A)) 15% extra BUA OR 10 m² per tenement (whichever more) without premium
33(7) (for context) Cessed buildings Up to 3.0 FSI OR Rehab + 50–70% incentive FSI
What it covers?
Applies to authorized tenant-occupied buildings in the Suburbs & Extended Suburbs and existing authorized non-cessed tenant occupied buildings in Mumbai City.
Key features
Rehabilitation FSI + incentive FSI
FSI available = FSI needed for rehabilitation of existing lawful tenants + 50% incentive FSI.
For composite plots (tenant + non-tenant buildings), the already authorized FSI of the non-tenanted part is also counted in total.
Additional rehab carpet area: Eligible tenants may get extra carpet area (e.g., ~5–8% depending on configuration).
This encourages redevelopment of older dilapidated structures while ensuring tenants are rehoused with incentives.
📌 2) Regulation 33(7B) — Additional FSI for Housing Societies
What it covers
Applies to existing residential housing societies (≥ 30 years old) that are not covered under:
33(7) (cessed buildings) or
33(7A) (dilapidated tenant/authorized buildings)
Main incentives
Additional FSI/BUA for redevelopment:
15% of the existing Built-Up Area (BUA) OR 10 m² per tenement, whichever is higher, is granted as incentive without premium.
If this additional BUA plus existing BUA is still below the permissible FSI (based on road width), the society can avail more FSI by paying premium/TDR up to that limit.
Staircase, lift, lobby areas may be treated favorably for FSI calculations (free of FSI or adjusted via premium rules).
Existing members must be re-accommodated for the incentive to apply.
What this achieves
Encourages self-redevelopment of older co-operative societies by giving incremental built area, improving viability without high premiums.
📌 3) (Context) Regulation 33(7) — Cessed Buildings (For Comparison)
Although your question focused on 33(7A) and 33(7B), it helps to contrast:
Applies to cessed buildings (often in Island City) under MHADA framework.
Offers FSI = 3.0 of gross plot area OR Rehab + Incentive FSI (50–70% depending on plot clustering), with additional rehab carpet area for larger schemes.
📌 4) Circular/Guideline Context for Implementation
The Municipal Corporation of Greater Mumbai (MCGM) (BMC) and Project Maitree provide circulars and guideline notes explaining how to apply these regs and how FSI caps, premium/TDR, and incentives work in practice.
Separate guidelines (e.g., Guidelines for 33(12)(B)) deal with implementation mechanics, including FSI caps and process clarifications for related redevelopment provisions under DCPR.
📌 Quick Comparison (At a Glance)
Regulation Applies To Key Benefit
33(7A) Dilapidated/unsafe authorized tenant & non-cessed buildings Rehab FSI + 50% incentive (plus extra carpet area)
33(7B) Existing residential housing societies (excluding 33(7)/33(7A)) 15% extra BUA OR 10 m² per tenement (whichever more) without premium
33(7) (for context) Cessed buildings Up to 3.0 FSI OR Rehab + 50–70% incentive FSI