Buying a Flat in a Mumbai Redevelopment Project: What to Check in the Sale Component

Much of Mumbai's new supply comes from redevelopment, where the developer sells extra flats to fund rehab for existing members. What buyers of those sale flats should check.

Redevelopment projects with new luxury towers in Worli

In a typical Mumbai redevelopment, the developer rebuilds an old society, gives existing members new flats (the rehab component) and sells extra flats (the sale component) to fund the project. Buyers of sale flats depend on the whole project going well, including the rehab side.

Checks before booking

MahaRERA registration for the project, with the registered completion date. See how to check MahaRERA registration.
The development agreement between the society and developer, and the society's consent.
Approvals: IOD and commencement certificate for the stage being built.
Rehab progress: whether members have vacated and are getting rent. Unhappy members can slow a project.
Disputes: check for litigation involving the society, members or developer.
Developer track record on similar projects.

In a redevelopment, your possession date depends on the rehab members as much as on the developer.

Questions to ask the developer

Are the sale and rehab buildings separate or the same?
Will the sale flat buyers join the existing society or a new one?
What is the project's MahaRERA completion date, and has it been extended?
Is there an escrow account for the project as RERA requires?
Who is the lender for the project, if any?

Context in 2026

Redevelopment is a large part of Mumbai's housing story this year, with hundreds of societies at some stage. Our post on the member checklist for redevelopment covers the society side, and MahaRERA's four-month extension explains a recent change to timelines.

Frequently asked questions

Is it safe to buy a sale flat in a redevelopment project?

It can be, with checks on RERA registration, approvals, the development agreement and the rehab side.

Does the RERA completion date apply to sale flats?

Yes, the registered completion date and any extensions apply to the project you're buying into.

Related reading

General information, not legal advice.

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