An open permit does not stop you selling. It stops most financed buyers, because the title report flags it and the buyer’s attorney will not let the money move until it is resolved or priced in.
An open permit is work the town authorised and never signed off. Somebody filed for a dormer, a deck, a finished basement, a new boiler or a pool, the building department issued the permit, and then the final inspection never happened. The permit stays on the property card, open, indefinitely. It does not expire quietly into nothing.
This is different from unpermitted work, where nobody filed at all, and both are different from a missing certificate of occupancy, which is the document saying the structure may legally be occupied in the way it is currently being used. A house can have all 3 problems at once, and on older Long Island housing stock it often does.
The distinction matters because the fix is different. An open permit usually needs inspections and paperwork to close out something the town already approved. Unpermitted work needs the town to approve it after the fact, which is a bigger ask and can fail. A certificate of occupancy problem is the consequence of either one going unresolved.
Almost always through the title search. When a contract is signed, the buyer’s attorney orders a title report, and part of that work is a municipal search: the title company asks the town what is on record for the address. Open permits, expired permits and the absence of a certificate of occupancy for an improvement come back in that report as exceptions.
The second route is the buyer’s lender. A lender wants clean title and a property that legally is what the appraisal says it is. If the appraisal counts a finished basement or a 4th bedroom that has no certificate of occupancy behind it, the lender has valued something the town does not recognise.
The third route is the buyer’s own inspector, who has no access to town records but can recognise work that looks newer than the house and ask the question. Once it is asked, it does not go away.
Sellers are frequently surprised here, and reasonably so. The work may predate their ownership by decades. Nobody is accused of anything. The record simply says the file was never closed, and the record is what the transaction runs on.
It depends entirely on how the buyer is paying.
A financed buyer usually cannot proceed. Not because the law forbids it, but because the chain of people involved will each decline the risk: the title company takes an exception, the lender will not lend against an exception it considers material, and the buyer’s attorney will not advise closing into it. The deal does not blow up loudly. It stalls, then dies, then the listing goes back on the market with days on market attached to it.
The customary contract position in New York is that the seller delivers the property with a certificate of occupancy for the improvements, and open permits closed. Which means the obligation to solve it lands on the seller by default, in the middle of a transaction, on the buyer’s timeline rather than their own.
A cash buyer can proceed, because there is no lender to satisfy and a buyer purchasing for renovation is going to be in front of the building department anyway. The problem does not disappear; it gets priced. See how a cash buyer arrives at a number for where that lands in the arithmetic.
The sequence is roughly the same across Nassau and Suffolk towns, even though the forms, the fees and the queue are not.
Order a property record search from the building department for the address. This is not the same as a title search, and it is worth doing before you list rather than after you are in contract. It tells you what was filed, what was approved, what was inspected and what was never signed off.
If the original plans are gone, and on older permits they generally are, an architect or engineer has to measure what exists and produce as-built drawings. This is usually the first real cost and the first real delay.
An expired permit typically has to be brought back to life before it can be inspected, which means a filing and a fee, and on older permits sometimes a penalty. Some towns run periodic amnesty programmes that waive part of it. Those come and go and are worth asking about rather than assuming.
The inspector sees the work as it stands today against the code the town applies. Anything that does not pass has to be corrected and re-inspected. Electrical work often needs a separate certification from an approved third-party inspection agency.
When the inspections pass, the town issues the certificate of occupancy or, for some work, a letter of completion. That is the document the title company needs.
Honest timing: this runs in months, not weeks, and the variable that dominates is not the town’s queue. It is how many rounds of correction the work needs. A boiler permit that only ever needed a final inspection can close in weeks. A finished basement with no egress window, low headroom and unpermitted plumbing can take a year, or can fail outright.
Some work is not resolvable by paperwork, because it does not comply with the zoning or the code and cannot be made to without removing it.
The recurring cases on Long Island are a converted garage that eliminated required parking, an accessory apartment in a district that does not permit one, a rear addition or deck that sits inside the required setback, and habitable basement space with insufficient ceiling height or no second means of egress. In those situations the routes are a variance from the zoning board of appeals, which is an application with a hearing and no guaranteed outcome, or removal of the work.
This is the moment when an honest conversation about the number becomes more useful than another month of trying. A house with an unlegalisable accessory apartment is not worth what a house with a legal 2-family is worth, and no amount of marketing closes that gap.
Anyone quoting a single number for this without seeing the file is guessing. What can be said honestly is what you are paying for, and there are 4 categories:
The fourth is the one sellers leave out and it is frequently the largest, particularly on an empty house.
Resolve it before listing. The right answer when the work is close to compliant, when you have the time and the money, and when the house is otherwise strong. A clean file widens your buyer pool back out to everybody with a mortgage, and that is where the highest price lives.
Disclose it and let the market price it. Viable, and sometimes the only practical route, but understand what it does: financed buyers largely leave, and the ones who remain are pricing an unknown, which means pricing it conservatively. You will usually see a wider spread of offers than you expect.
Sell to a buyer who takes it on. A cash buyer purchasing for renovation absorbs the open permit as part of the scope, because they are filing with the building department for the renovation regardless. The number reflects it, and it should: the cost and the risk move to them.
None of these is the right answer in general. Which one is right depends on how far the work is from compliant, how much time you have, and whether the house has other problems that push it out of the financed market anyway.
Tell us what the building department has on file, or tell us you do not know yet. Either way you will have a number in writing by the end of the next business day, and the open permit is priced into it rather than discovered later.
Goes to offers@investngroup.com. Selling your own house? Start on the homeowner page.