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Booking an under-construction flat: what to establish first

7 min read · Last verified

In short

Before booking an under-construction flat, verify that the RERA registration covers your specific tower and phase, read the filed quarterly progress updates, check the developer's delivery record on completed projects, confirm the land title and approvals, and read the agreement's delay and force majeure clauses before paying anything substantial.

Key facts

What you are buying
A contractual promise, not an existing building
Primary public record
The project's RERA registration and filed updates
Strongest single signal
The developer's record on completed projects
Most revealing document
Filed quarterly progress updates
Before large payment
Independent title verification

Under-construction inventory dominates Navi Mumbai — across the nodes we list, ready-to-move projects are a small minority. For most buyers here, this is not a choice between ready and under construction; it is a question of how to assess under construction properly.

The checks below are ordered by how much they tell you relative to the effort involved.

Read the RERA registration properly

Not just confirm it exists. Open it and read it. The registration states the declared completion date, the sanctioned plan position and the extent of the registered phase.

Confirm the registration covers your specific tower. Large developments are registered phase by phase, and a marketing name can span several registrations with different timelines.

  • Does the registration cover your tower and phase specifically?
  • What completion date is declared, and does it match what you were told?
  • Has the registration been extended, and how many times?
  • Is the registration current rather than lapsed?

Read the filed progress updates — the most informative document available

Developers are required to file periodic progress updates. These are public, and the gap between the declared timeline and the filed progress is the single most useful signal a buyer can get for free.

A project whose updates have stopped being filed is telling you something. So is one whose reported progress has been flat across several filings.

Check the developer's record, not its brochure

The best predictor of whether a developer delivers on time is whether it has delivered on time before. That record is checkable.

Look at completed projects: were they finished close to the declared date? Did they receive occupancy certificates? Are the buildings maintained? Talking to residents of a completed project is worth more than any amount of marketing material.

  • Find its completed projects and visit one.
  • Compare declared and actual completion dates on past registrations.
  • Check whether completed projects hold occupancy certificates.
  • Ask residents about handover quality and how snags were dealt with.

Verify the land, because construction risk is not the only risk

A project can be built competently on land with a title problem. In Navi Mumbai the land category matters — CIDCO leasehold, freehold or gaothan — and it affects both the security of your purchase and whether lenders will finance it.

Commission a title search through your own lawyer before paying beyond a nominal amount.

Read the clauses that matter when it slips

Delay is common enough that the clauses governing it are not hypothetical.

  • What compensation is payable for delay, and from what date does it run?
  • How broadly is force majeure drafted? A wide clause can absorb the delay provision.
  • What interest do you pay on a late instalment, and how does it compare?
  • What are the cancellation terms if you need to exit?

Understand what you are paying, and when

A construction-linked schedule ties instalments to stages. Check how much is payable by structural completion and how much is held to handover — the latter is your leverage at the end.

Remember the parallel costs: pre-EMI interest through the construction period, and rent if you are paying it meanwhile.

Common questions

What is the most useful check on an under-construction project?

Reading the filed quarterly progress updates on the RERA portal alongside the declared completion date. It is public, free, and shows whether the project is actually moving.

How do I judge a developer I have not heard of?

By its completed projects. Compare declared and actual completion dates on past registrations, check whether those buildings received occupancy certificates, visit one, and talk to residents about handover quality.

Can one project have more than one RERA number?

Yes. Large developments are commonly registered phase by phase with separate timelines. Confirm the registration covering your specific tower rather than the one attached to the marketing name.

What is the biggest risk in an under-construction purchase?

Delay is the most common. The less frequent but more serious risk is a defect in the land title or approvals, which is why an independent title search before any substantial payment is worth its cost.

Where to go next

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