Last week we assembled the FSI stack — base, premium, TDR, fungible — and saw how road width calibrates density across the city. That framework covers what you might call ordinary development: an open plot, a clean title, a straightforward build.
But most of Mumbai doesn’t work that way. The majority of the city’s future housing supply will come not from open land but from redevelopment — from renewing what already stands, and rehousing the people who already live there. DCPR 2034 dedicates an entire family of provisions to making that possible, and this week we look at the three that matter most: MHADA layouts, slum rehabilitation, and the newer incentives for aging societies.
For a Mumbai developer, these are not niche schemes. They are the market.
One idea underneath all of it
Before the individual regulations, it’s worth seeing the design principle they share, because once you see it, each scheme becomes easy to read.
Every rehabilitation provision in DCPR 2034 runs on the same engine: rehab plus incentive. The developer rehouses the existing occupants free of cost, and in exchange receives incentive FSI — additional area that can be sold in the open market. The free-sale component funds the rehabilitation component. Public good and private viability, engineered into the same project.
This is cross-subsidy as regulation, and it’s a genuinely elegant solution to a hard problem: how does a city renew its oldest, most crowded housing stock without displacing anyone and without spending public money it doesn’t have? The answer DCPR gives is — let the market fund it, and calibrate the incentive so the numbers work.
Which brings us to the calibration.
The LR/RC ratio: the framework’s quiet masterstroke
The incentive FSI in these schemes is not a flat number. It’s linked to a ratio: the Land Rate of the plot (per the Annual Schedule of Rates) divided by the Rate of Construction applicable to the area.
Think about what that achieves. In a high-value location, where every square metre of free-sale area earns a premium, a developer needs less incentive for the project to be viable — so the ratio grants less. In a location where land values are modest relative to construction costs, the same rehab obligation needs more support — so the ratio grants more.
The incentive self-adjusts to local economics. Projects that would be windfalls are moderated; projects that would be unviable are lifted into feasibility. One formula, applied city-wide, doing the work that would otherwise take a hundred case-by-case negotiations. It is one of the smartest pieces of design in the entire regulation.
MHADA layouts — Regulation 33(5)
MHADA’s housing colonies — built across decades to house the city’s middle and lower-income families — are now among Mumbai’s most significant redevelopment opportunities. Regulation 33(5) governs how they renew.
The structure: FSI of 3.00, extendable up to 4.00 for larger plots on roads of 18 metres and above. The existing residents are rehoused with enhanced entitlements, the incentive FSI follows the LR/RC ratio, and the additional FSI on wider roads carries a sharing arrangement — a portion of the area is handed to MHADA as social housing stock, in a defined ratio between MHADA and the society.
Two features are worth a developer’s attention. First, smaller society plots have the option of paying a premium in place of sharing housing stock — a flexibility that simplifies execution on compact sites. Second, with MHADA’s approval, the authority’s share can be provided elsewhere within the same or adjoining ward, which opens up real design freedom on the redevelopment plot itself.
The result is a scheme where the developer gains a substantial FSI envelope, the residents gain new homes, and the city gains fresh affordable stock — all from the same project.
Slum rehabilitation — Regulation 33(10)
This is the most ambitious provision in DCPR 2034, and arguably the most important urban renewal instrument in India.
The promise at its core: every eligible slum household receives a new home of at least 300 square feet of usable carpet area, free of cost — a meaningful increase over the earlier entitlement. The developer builds these rehabilitation tenements and earns free-sale area in return, with the incentive again linked to the LR/RC ratio.
The FSI architecture is where Week 2’s lessons return. In-situ FSI — what you can actually build on the plot — is governed by access: 3.00 for plots on roads between 9 and 13 metres, and 4.00 or more, up to the sanctioned scheme FSI, for roads of 13 metres and above. Road width disciplines density even here.
And when the permissible FSI exceeds what the plot can physically carry? The balance is issued as TDR — connecting this scheme directly to the market we discussed last week. A slum rehabilitation project in one part of the city can generate development rights that build towers in another. The schemes are not silos; they are one interconnected system.
For the developer, the model is demanding — rehabilitation must be delivered, timelines matter, and the SRA oversees the process closely — but the framework is designed for viability, with fungible area in the rehab component granted without premium and the authority empowered to grant relaxations where a scheme needs them.
Aging societies — Regulation 33(7)(B)
The newest member of this family, and a thoughtful one. For the first time, DCPR 2034 extends redevelopment incentives to ordinary private housing societies — the thousands of buildings across the suburbs that are structurally sound on paper but thirty, forty, fifty years old.
The provision: societies older than 30 years receive incentive FSI of 10 square metres per member, or 15% of the authorised built-up area, consumed within the permissible FSI envelope.
It’s a modest incentive compared to the rehabilitation schemes, and deliberately so — these residents own their homes and need renewal, not rehousing. But it changes the arithmetic for exactly the buildings that were previously hardest to redevelop: too old to ignore, too small to attract a major scheme. For a developer willing to work at society scale, 33(7)(B) has quietly opened a very large market.
The three at a glance
| Parameter | MHADA layouts — 33(5) | Slum rehab — 33(10) | Aging societies — 33(7)(B) |
|---|---|---|---|
| Applies to | Notified MHADA layouts | Notified slum areas | Societies 30+ years old |
| Resident entitlement | Enhanced rehousing area | Min. 300 sq ft carpet, free | Existing homes, renewed |
| Incentive logic | LR/RC ratio | LR/RC ratio | 10 sq m/member or 15% BUA |
| FSI envelope | 3.00, up to 4.00 | In-situ 3.00–4.00+ by road | Within permissible FSI |
| Distinctive feature | Premium or stock-sharing option | Balance FSI issued as TDR | First incentive for private societies |
What this means for your model
Three practical takeaways for anyone underwriting these projects.
The incentive is the margin. In rehabilitation schemes, your free-sale area is not a bonus on top of the project — it is the project. Reading the LR/RC ratio correctly for a given plot is the first feasibility question, before land cost, before design.
The rehab component is protected. Fungible area granted without premium, construction obligations front-loaded, resident entitlements defined precisely. The framework is built so that the public promise is kept — which, over time, is exactly what keeps these schemes politically durable and available to us as an industry.
And road width never stops mattering. Even inside the most generous scheme, in-situ FSI follows access. Week 2’s habit — walk out to the road — applies with full force here.
A note on precision
As always: the figures above reflect the notified structure. These provisions in particular have seen thoughtful refinement through government resolutions since 2018 — entitlements enhanced, processes streamlined — and the current position should be verified before any number enters a financial model. The architecture, though, is stable, and it’s the architecture that’s worth internalising.
Next week
We stay with redevelopment but move to the island city’s most storied building stock: cessed buildings and cluster redevelopment. Regulations 33(7), 33(7)(A), and 33(9) — the provisions renewing the oldest neighbourhoods in Mumbai, and some of the most generous FSI mathematics in the entire framework.