Occupancy Certificate Mumbai 2026: Buying a Flat With or Without OC

An occupancy certificate in Mumbai is the document that turns a finished building into a legal home. Thousands of buildings in the city don’t have one. In December 2025 the Maharashtra government told the state assembly that close to 20,000 Mumbai buildings had been refused OCs, many over minor deviations, affecting about 2.5 lakh families. In August 2026 the BMC’s general body approved an OC amnesty scheme for some of them. As of early October 2026, applications were still stalled because the BMC’s AutoDCR portal wasn’t working.

For a buyer, the lesson is simple. A ready flat with no OC is not the same product as a ready flat with one, even if the two look the same on a site visit. The difference shows up in your water bill, your home loan, your society’s legal standing and, eventually, your resale price.

We at Godrej Properties MMR check OC status before recommending any ready-to-move flat. This occupancy certificate Mumbai guide explains what an OC is, how it differs from a commencement certificate and a part OC, what the 2026 amnesty covers, and how to verify an OC yourself.

A building in Mumbai collects several permissions from the Municipal Corporation of Greater Mumbai (BMC) as it goes up. Buyers mix them up often, so it helps to see them side by side.

The part OC matters most in large projects. Developers often take possession in phases, so the first towers may hold an OC while later ones don’t. Always check that the certificate names your wing and lists your floor. A part OC that stops at the 30th floor doesn’t cover a flat on the 32nd.

Conditional OCs need care too. In a December 2025 Bandra dispute reported in the press, MahaRERA noted that an OC subject to pending statutory compliances could not be treated as a final, complete OC. In a January 2026 Thane case involving 26 complaints, MahaRERA linked the developer’s interest payments to buyers to the issue of the full OC.

A Bombay High Court ruling has held that moving into a building without the mandatory municipal occupation certificate is against the law. The certificate is a legal threshold, not paperwork that can follow later.

Most no-OC buildings in Mumbai are occupied and working. Residents live there, pay bills and sell flats. The costs show up gradually, and they are borne by the owners, not the developer who failed to get the certificate.

• Higher municipal charges. Buildings without an OC are commonly billed above standard rates. In one society whose case reached the Supreme Court, members paid property tax 25% above the normal rate and water charges 50% above it. Press reports describe at least 6,000 Mumbai buildings paying penal water rates.
• Home loan problems. Most banks won’t disburse a loan on a ready flat without an OC, or will lend only after a deeper legal check. This shrinks the pool of resale buyers [VERIFY: varies by lender].
• Legal exposure. Occupying a building without an OC is unlawful in principle, and unauthorised deviations from the plan can attract action from the BMC.
• Redevelopment friction. Missing or irregular approvals complicate redevelopment talks years later.
• Lower resale value. The two problems above combine into a discount when you sell [VERIFY: not sourced, size varies].

There is one partial relief. Under a Maharashtra government resolution dated 22 June 2018, a housing society can apply for deemed conveyance (ownership of the land and building) without an OC. It must file a self-declaration undertaking to pay the dues and obtain the OC later. The Bombay High Court has also held that a promoter can’t use the missing OC to block deemed conveyance under MOFA. This protects the society’s title, but it doesn’t remove the higher charges or the loan problem.

The OC amnesty is the biggest change to Mumbai’s no-OC problem in years. It is narrower than many headlines suggest. Here is what has been reported so far.

A September 2026 note from law firm Trilegal warned that the scheme isn’t a blanket regularisation. Issues such as civil aviation NOCs, setbacks, MHADA approvals and encumbrances still have to be resolved building by building. We haven’t seen the final fee or penalty schedule [VERIFY: not sourced]. Check the BMC circular before assuming any charge is waived.

Our view is that the amnesty helps existing residents of older buildings. It doesn’t make a no-OC flat a safe purchase today. If a seller says “the OC will come under the amnesty”, treat that as a possibility, not a fact, and price the risk in.

Verifying an occupancy certificate Mumbai buyers are shown takes a day or two, and it should happen before you pay any token amount on a resale flat, or the final instalment on a new one.

1. Ask for a copy of the OC from the developer or the society, and check the building name, wing, floors covered and date.
2. Check the BMC AutoDCR portal (autodcr.mcgm.gov.in). Use the proposal or file number on the OC to confirm the record and its status.
3. Check MahaRERA for projects registered after 2017. Search the RERA number and open the project documents, where developers upload the OC once they receive it.
4. Visit the ward office for older buildings where online records are incomplete. The building proposal department keeps physical files.
5. Match the OC to the approved plan. Check that the number of floors and the use of each floor match what was built.
6. Read the conditions. A conditional OC or part OC should be read line by line, ideally by a property lawyer.
7. Get your lender’s legal report. Your bank’s title check is a useful second opinion, so don’t skip it on a resale purchase.

For new projects, combine these steps with the wider checks in our guide to MahaRERA homebuyer protections in 2026.

The OC is also why a ready Godrej flat is priced differently from an under-construction one. Once a project has its OC and completion certificate, no GST applies to the sale, against 5% GST on an under-construction flat. On a Rs 1.7 crore flat, that is about Rs 8.5 lakh. You also avoid paying rent and EMI at the same time.

Godrej Nest in Kandivali East is a good example. It is a completed 553-apartment project (MahaRERA P51800022159) with its occupancy certificate received, selling at about Rs 28,200 per sq ft carpet. Our Godrej Nest Kandivali reviews cover how it lives day to day. In Vikhroli, Godrej The Trees is a ready option with a resident community already in place. For a project at the handover stage, see our Urban Park handover-stage review, which covers what to check as possession begins.

Even with a Godrej Properties Limited project, confirm that the OC covers your specific tower. In multi-phase developments, OCs often arrive one tower at a time.

Q: What is an occupancy certificate in Mumbai?

It is a certificate issued by the BMC (or another planning authority, such as MHADA or the SRA) after a final inspection. It confirms that the building was built to its approved plans and is fit to occupy. It is different from the commencement certificate, which only allows construction to start.

Q: Can I buy a flat without an OC in Mumbai?

You can, but it is risky. No-OC buildings often pay higher water charges and property tax, many banks won’t fund the purchase, and the Bombay High Court has held that occupying a building without an OC is unlawful. Price that risk in, or choose a flat whose building has a full OC.

Q: Is a part OC enough to take possession?

Only if it specifically covers your wing and floor. Developers often get part OCs as wings are completed. A part OC for floors 1 to 30 does not cover a flat on floor 32. Read the floor range on the certificate itself.

Q: Who is eligible for the BMC OC amnesty scheme?

As reported in 2026, the scheme covers residential, school and hospital buildings occupied before 17 November 2016 that hold an IOD or development permission, with units up to 80 sq m carpet. Buildings under MHADA or SRA jurisdiction are excluded. Applications were stalled in October 2026 while the AutoDCR portal was down.

Q: Can a society get conveyance without an OC?

Yes. A 22 June 2018 government resolution lets a society apply for deemed conveyance without an OC if it files a self-declaration undertaking to obtain the OC later. This secures the land title but doesn’t remove the higher charges a no-OC building pays.

Q: Do I pay GST on a flat that has an OC?

No. GST applies to under-construction sales. Once the completion or occupancy certificate is issued, the sale of a flat is not subject to GST, which saves 5% of the agreement value on a standard residential unit.

The occupancy certificate Mumbai’s BMC issues is the most important document to check when you buy a ready or resale flat in the city. The 2026 amnesty may regularise thousands of older buildings in time, but it is narrow, slow and not yet open for applications. For a purchase you make today, insist on a full OC that names your wing and floor, verify it online and at the ward office, and never sign for possession on a promise.

Looking for ready homes with OCs in place? Explore the ready-to-move options on Godrej Properties MMR, or ask our team to arrange a site visit with the documents in hand.