A Mumbai family in Mulund almost paid a booking amount for a tower that looked complete in the brochure and half built on the ground. Before they signed, a two minute check on the MahaRERA portal showed the project's registration had lapsed, with no extension applied for. That single status line told them what glossy marketing never would: the state's regulator no longer recognised the project as active. They walked away and kept their deposit. The tool that saved them is free and open to every buyer.

The short answer. Every under construction real estate project of a qualifying size in Maharashtra must be registered with MahaRERA, and you can verify any project yourself on the official MahaRERA portal at maharera.maharashtra.gov.in using its Search Project Registration feature. A Mumbai project carries a registration number in the format P51900 followed by unique digits. The status is the number that matters most: a valid, active registration is reassuring, while a lapsed, expired or withdrawn status is a red flag you should not ignore.

RERA was built to protect buyers from exactly the problems that used to define Indian real estate: diverted funds, endless delays and projects that vanished. The registration record is where that protection becomes concrete. This guide shows what the registration proves, how to search it, how to read the status and details, and where a clean registration still leaves gaps you must check yourself.

What does a MahaRERA registration actually prove?

A MahaRERA registration confirms that the developer has filed the project with the Maharashtra regulator and committed to its disclosure and fund rules. Registration requires the promoter to declare the project's approvals, layout, timelines and financials, and to route buyer money through a dedicated project account under the RERA framework. So a registered project is one the state has on record with enforceable commitments attached, rather than an informal launch running on promises alone.

What it does not prove is that the project is problem free. Registration is a threshold of accountability, not a quality guarantee. A registered project can still slip its timeline or face disputes; the difference is that a buyer now has a regulator, a public record and a complaint mechanism to turn to. That is why the registration check is the first step of due diligence, the one that decides whether you are even inside the protective framework, not the last. Think of it as the gate you must pass before any of the other protections become available to you, because a complaint mechanism only helps if the project it concerns is on the regulator's books in the first place.

How do I search a project on the MahaRERA portal?

You search on the official MahaRERA portal at maharera.maharashtra.gov.in, using the Search Project Registration option under the registration menu. You can look up a project by its MahaRERA registration number, the project name, the promoter or developer name, the district, or even the promoter's PAN. Searching by the registration number gives the most precise result, so if the developer has quoted a number, use it to land directly on the correct project.

Once you open the project record, the portal shows the details the developer filed with the regulator. These include the registration number and status, the project type and location, the committed completion date, and disclosures such as parking, amenities and the FSI consumed. Many records also show the work completion percentage and any litigation recorded against the project, which together give a far fuller picture than any brochure. Because these disclosures come from the developer's own filings with the regulator, they carry a weight that a marketing claim does not, and any sharp gap between the two is itself a signal worth examining.

What registration number and status should I look for?

Look for a registration number in the Mumbai format, which begins with P51900 and is followed by a unique set of digits, and confirm the status shows the registration as valid and active. The P stands for project and 51900 is the code tied to the Mumbai jurisdiction, so a number in this pattern is your first sign that you are looking at a genuine Mumbai project registration rather than a made up reference.

The status line is where you must slow down. A registration that reads as expired, lapsed, withdrawn or revoked means the project no longer holds a live MahaRERA registration, and that is a serious warning. It can point to a developer who has not applied for an extension, or to deeper financial or legal trouble. Never treat a quoted registration number as proof on its own; open the record and read the current status for yourself before you commit any money.

What details beyond the status are worth reading?

Read the committed completion date, the work completion percentage and the litigation status, because together they test the developer's story against the regulator's record. If a project is marketed as nearly ready but the filed completion percentage is low, or the committed date has already passed without a revision, those gaps deserve hard questions before you pay. The record turns a sales pitch into something you can check.

The disclosures on approvals, layout and FSI consumed also matter, since they tell you what the developer has actually committed to build. For buyers weighing whether to commit to an under construction home at all, our guide to ready to move versus under construction sets out the wider trade offs, and once you have decided, our guide to Mumbai stamp duty and registration charges covers the cost you will pay to register the home.

Does a valid registration mean the project is safe?

No, a valid registration is necessary but not a guarantee of a safe or on time project. It confirms the project sits inside the RERA framework, with disclosures and a complaint route, which is a real protection. But it does not promise the developer will deliver on schedule, that the quality will match the brochure, or that no dispute will arise. Buyers who read registration as a seal of safety can lower their guard at the wrong moment.

Use the registration as the foundation, then keep checking. Read the filed disclosures, verify the title and approvals independently, and watch the project's status and complaints over time rather than once. The buyers who fare best treat MahaRERA as a living record they return to, not a badge they glance at once and forget. A registered project handled with continued diligence is a very different bet from an unregistered one handled on trust. The registration gives you standing and a paper trail; your own vigilance is what turns that standing into real protection over the months and years a home purchase can take.

What mistakes do Mumbai buyers make with RERA checks?

The common mistakes are accepting a quoted number without opening the record, ignoring a lapsed status, and treating registration as a full quality guarantee. Each defeats the purpose of the check. A number on a brochure proves nothing until you search it. A lapsed status is a warning that too many buyers rationalise away. And over trusting registration stops buyers from doing the title, approval and timeline checks that RERA disclosure is meant to support, not replace.

A quieter mistake is checking once and never again. A project's status and litigation record can change, so a buyer paying in instalments over months should revisit the record, not rely on a single early look. Search the project properly, read the status and details in full, and keep returning to the portal through your purchase. In a market with Mumbai's stakes, that habit is among the cheapest protections a buyer has.

Reading a MahaRERA project record

A MahaRERA verification checklist for Mumbai buyers

1. Ask the developer for the project's MahaRERA registration number before you discuss money.
2. Open the official portal at maharera.maharashtra.gov.in and choose Search Project Registration.
3. Search by the registration number, or by project and promoter name if you lack the number.
4. Confirm the number fits the Mumbai P51900 format and open the correct project record.
5. Read the status and reject anything showing lapsed, expired, withdrawn or revoked.
6. Compare the filed completion date and work percentage against the sales pitch.
7. Check the litigation status and revisit the record as your payments progress.

Frequently asked questions

How do I verify a MahaRERA registration in Mumbai?

Open the official MahaRERA portal at maharera.maharashtra.gov.in and use the Search Project Registration feature. Search by the project's registration number, or by the project name, promoter name or district. Then open the project record and read its status and disclosures rather than relying on a number quoted in marketing material.

What does a Mumbai MahaRERA registration number look like?

A Mumbai project registration number begins with P51900 followed by a unique set of digits. The P denotes a project and 51900 is the code tied to the Mumbai jurisdiction. A number in this format is your first sign of a genuine Mumbai project registration, though you must still open the record to confirm the status.

What if the project status shows lapsed or expired?

A lapsed, expired, withdrawn or revoked status means the project no longer holds a live MahaRERA registration, which is a serious red flag. It can indicate a developer who has not sought an extension or one facing financial or legal difficulty. Treat it as a strong reason to pause and seek answers before paying anything.

Does a valid MahaRERA registration guarantee the project?

No. A valid registration confirms the project sits inside the RERA framework with disclosures and a complaint route, which is a real protection, but it does not guarantee on time delivery, quality or a dispute free project. Use it as the foundation of your checks, then verify the title, approvals and timelines independently before committing.

Last updated 14 August 2026. PropNewz Team.