A buyer who closes on a NYC house without a Certificate of Occupancy owns the problem the moment the deed records — and if the money set aside to fix it was never in a neutral escrow, the buyer owns it alone. On a referral this month, homeowners in a small development had each deposited $50,000 with the developer to fund the Certificate of Occupancy. The developer disappeared with all of it. The houses still have no CO.
Most buyers treat “we’ll hold money in escrow for the CO” as protection. It is only protection if the amount was priced against the actual open items, the funds sit with an attorney rather than the seller’s side, and release is tied to DOB issuing the certificate. Miss any one of those and the escrow is a promise, not a remedy.
Buying a house without a Certificate of Occupancy in NYC is legal but transfers every open DOB item to the buyer at closing. The only protection is a funded escrow held by a neutral attorney, sized to a priced scope of the open items, and released only when DOB issues the CO — never on a date.
At a Glance
- NYC DOB, 2026: “New buildings must have a CO.” Buildings built before 1938 are exempt unless later alterations changed the use, egress or occupancy.
- DOB requires ten conditions before a final CO issues, including final construction, plumbing, electrical and elevator sign-offs, a final building survey, no open applications and no open violations.
- A Temporary Certificate of Occupancy typically expires 90 days after issuance and must be renewed until the final CO is in hand.
- Under Zoning Resolution Section 11-332, a permitted building that does not receive a CO within two years of a rezoning loses its permit — the fix moves from a DOB filing to a Board of Standards and Appeals case.
- September 2026 referral to All Boro Expediter: $50,000 per home deposited with the developer for the CO, developer gone, 28 open DOB items on the job, buyer walked at the title search.
Can you legally buy a house in NYC that has no Certificate of Occupancy?
Yes. Nothing in New York law stops a seller from transferring title to a house with no Certificate of Occupancy, and nothing stops a buyer from accepting it. What changes at closing is who carries the exposure. DOB’s rule is that a new building must have a CO, and an existing building must have a current or amended CO whenever use, egress or occupancy changed. A buyer who takes the deed takes the obligation to satisfy that rule.
The practical limits come from lenders and insurers, not the law. Most mortgage lenders will not fund a purchase on a new building without a CO or a valid Temporary Certificate of Occupancy, which is why these deals are so often all-cash — and why the buyer in the September 2026 referral was negotiating without a bank forcing the question. Buildings built before 1938 are the exception: DOB does not require a CO for them unless later work changed the use, egress or occupancy.
Why does a Certificate of Occupancy escrow fail?
A Certificate of Occupancy escrow fails for one of three reasons, and the September 2026 referral hit all three at once. The homeowners’ $50,000 deposits were held by the developer, not by an attorney. The amount was a round number, not a priced scope of the open items on the DOB job. And there was no release condition tied to DOB actually issuing the certificate — the money was simply supposed to be spent on it.
| Escrow term | What fails | What holds |
|---|---|---|
| Who holds the funds | Seller, developer, or seller’s attorney with discretion to release | Buyer’s attorney or a neutral escrow agent under a written agreement |
| How the amount is set | A round number the parties agreed to | A per-item price for every open required item on the DOB job, plus professional fees, plus a contingency |
| Release condition | A date, or “when the work is done” | DOB issuance of the final CO, with the buyer entitled to the funds if the seller misses an outside date |
| Zoning check | Nobody looked at whether the lot was rezoned since the permit | Zoning history confirmed before the escrow is sized — a lapsed permit is a BSA case, not a closeout |
The last row is the one that turns a manageable closeout into a five-figure zoning case. If the lot was rezoned after the permit was issued and no CO issued within two years, the permit lapsed under ZR 11-332. No escrow sized for sign-offs covers a Board of Standards and Appeals application.
What does a buyer actually inherit with a missing CO?
A buyer who closes without a Certificate of Occupancy inherits every open required item on the DOB job, and DOB does not shorten the list because ownership changed. DOB’s Certificate of Occupancy page lists ten conditions for a final CO: final construction sign-off, final plumbing sign-off, final elevator sign-off, final electrical sign-off, final building survey, final Builders Pavement Plan, no open applications, no open violations, an owner’s cost affidavit on form PW3, and an approved schedule of occupancy in DOB NOW.
On the September 2026 referral the job’s required-items list ran to 28 open entries against that checklist — sign-offs never requested, a final survey never filed, detector certifications missing, and a 2010 inspection that denied a construction update because a sliding door and deck on the approved plans were never built. Each item needs a licensed professional: an electrician for the electrical sign-off, a surveyor for the survey, an architect or engineer of record to amend drawings that no longer match the house. Where the original professionals are gone, a superseding application has to be filed before any of it can move.
A Temporary Certificate of Occupancy does not end the exposure. DOB’s rules say a TCO typically expires 90 days after issuance and must be renewed until the outstanding items are resolved. A buyer holding a TCO is holding a 90-day clock, not a certificate.
What should a buyer’s attorney order before agreeing to close without a CO?
Three documents, in this order, before any escrow number is discussed.
The DOB job’s required-items list. Pull the New Building or Alteration job in DOB BIS or DOB NOW and print every required item with its status. This is the scope. If nobody can produce it, nobody can price the escrow.
The zoning history of the lot. Check the current district on the Department of City Planning’s ZoLa map and compare the zoning map amendment date to the permit date. A permit issued before a rezoning with no CO within two years of it has lapsed under ZR 11-332, and the closeout is no longer a DOB matter.
A priced scope from an expediter. Each open item carries a professional, a filing and a timeline. All Boro Expediter’s Certificate of Occupancy work starts by turning the required-items list into a number an attorney can put in a rider. Our buyer due-diligence guide covers the violation searches that go alongside it — open violations block a CO just as surely as a missing sign-off.
What happens to the seller when the buyer walks?
A seller whose buyer walks over a missing Certificate of Occupancy is left with a house that cannot be sold at market until the CO problem is priced and funded. On the September 2026 referral, the existing owner had paid $50,000 into an escrow that no longer exists, has 28 open DOB items, and — because the lot was rezoned — faces a Board of Standards and Appeals application that the reviewing architect estimated at roughly $65,000 before construction. The next buyer’s attorney will run the same title search and find the same open job.
The seller’s options are the same three the buyer’s attorney should have priced: fund the closeout and deliver the CO, discount the price by the priced scope and let a cash buyer take it, or hold the property. None of them is available until the required-items list has been scoped. Selling a NYC property with open violations follows the same logic — the difference is that a missing CO on a new building carries a zoning question underneath it.
Price the CO Before You Price the House
An escrow that was never sized against the DOB job is not protection — it is a number two parties agreed on to get to closing. The homeowners who lost $50,000 each on the September 2026 referral did everything a buyer is usually told to do. What nobody did was pull the required-items list and the zoning history before the money moved.
All Boro Expediter has worked with buyers’ attorneys, title companies and brokers on Certificate of Occupancy closeouts across all five boroughs since 2011. If you are buying or listing a home without a CO, send us the address before the contract is signed. We will pull the job, read the zoning, and give you the scoped number. Contact us or call 718-374-5044. Our real estate compliance services exist for this closing.
Frequently Asked Questions
Is it illegal to live in a NYC house without a Certificate of Occupancy?
DOB requires new buildings to have a Certificate of Occupancy before they are occupied, and existing buildings to have a current or amended CO when use, egress or occupancy changed. Occupying a new building without one is occupying outside its legal status and exposes the owner to DOB enforcement. Buildings built before 1938 with no later change in use, egress or occupancy are not required to have a CO.
Can I get a mortgage on a NYC house with no Certificate of Occupancy?
Most lenders will not fund a purchase of a new building without a Certificate of Occupancy or a valid Temporary Certificate of Occupancy, because the collateral cannot be legally occupied. That is why these transactions are usually all-cash, and why the buyer has no bank forcing the CO question before closing.
How much should a Certificate of Occupancy escrow be?
The sum of a per-item price for every open required item on the DOB job, plus professional fees for the architect, engineer, surveyor and trades those items need, plus a contingency — and only after the zoning history confirms the permit has not lapsed. There is no standard figure. On the September 2026 referral, $50,000 per home was agreed without that scope, and the number turned out to be irrelevant once the developer left with the funds.
Does a Temporary Certificate of Occupancy protect the buyer?
Only for as long as it lasts. DOB says a Temporary Certificate of Occupancy typically expires 90 days after issuance and may be renewed if the outstanding items for a final CO are not resolved. A buyer closing on a TCO takes on the renewals and the open items behind them.
What if the lot was rezoned after the house was permitted?
Zoning Resolution Section 11-332 requires a building permitted before a rezoning to be completed and receive a CO within two years of the amendment’s effective date. If it was not, the permit lapsed automatically. The path to a Certificate of Occupancy then runs through the Board of Standards and Appeals, and no closeout escrow is sized for that.
Who is responsible for the missing CO after closing — buyer or seller?
The buyer, unless the contract of sale says otherwise. Once the deed records, DOB’s open required items belong to the owner of record. A rider that keeps funds in a neutral escrow until DOB issues the CO is the only mechanism that keeps the seller financially responsible after closing.
