The unpermitted work nobody thought to file for
Long Island housing stock has been extended, finished and converted for generations, and permits were not always the habit. A good share of the square footage people live in today was added quietly over a few weekends.
That is why this comes up so often at the closing table. The house you have been living in and the house on file at the town are two different houses, and the gap between them is what unpermitted work actually means.
What we bring to unpermitted work, beyond the money
Most owners get here after one call to the building department that raised more questions than it answered. What we can offer first is somebody who has been through this repeatedly telling you plainly what your options are.
If selling suits you, we buy with the unpermitted work in place. If the addition could be legalized without much trouble and the house would net more legalized and listed, we will say so and give you the name of an expeditor. Neither conversation costs you anything.
What this looks like in Bellmore specifically
Bellmore is roughly 16,297 people in Nassau County, ZIP 11710, and the housing stock is mostly hi-ranch, cape cod, colonial. Around Bellmore Avenue and Merrick Road, most of it is old enough that the mechanicals are on their second or third life. The Bellmore stop pulls buyers who commute, which supports the good houses and does very little for the ones that need a roof. We have been buying across Nassau County for 15+ years. We know what the Bellmore Union Free School District does to a resale price, which blocks still have oil tanks in the ground, and what a house like yours is actually worth here.
The Bellmore median has barely moved year over year as of 2026-10, at 2.33%. Flat is the hardest market to price a fixer into, because there is no upward drift to cover a mistake and no urgency pushing buyers to overlook a problem. At a $859,559 median, Bellmore buyers are paying enough that they expect the house to be finished. A dated kitchen is a deduction in a cheaper market and close to disqualifying in this one, which is why unrenovated houses here sit while the renovated ones move. The median house here goes under contract in about 28 days, which is quick for Long Island. It is also a figure that only applies to property in showable condition.
Appraisals, unpermitted square footage and the certificate of occupancy
A mortgage lender is lending against the house the town has on record, not the house you have been living in. When an appraiser measures finished space that does not appear in the certificate of occupancy, the questions start.
What usually follows is a request for permits, or for the work to be legalized before funding. That lands on the seller, on a deadline, at a pace the building department sets rather than the buyer. It is the most common way this ends an otherwise healthy contract.
Why legalizing unpermitted work takes longer than anyone expects
Getting work approved after the fact is possible sometimes and impossible other times, and which one you are in turns on details nobody can judge from the outside. Setbacks, lot coverage, ceiling heights, egress, how current code differs from the code in force when it was built.
Your town's building department decides what can be permitted now, and an expeditor will know how that department tends to handle it. What we can tell you is that the process runs slower than a sale does, which is the practical problem.
What the two paths cost in Bellmore
These are the two routes open to you with a house with unpermitted work, priced against what Bellmore houses actually sell for.
Work it against Bellmore's own numbers. The median sale here is $859,559. A 5% commission on that is $42,978, and seller closing costs of about 2% add roughly $17,191. Those are costs we can cover on our side. That is $60,169 gone before anyone counts the repairs it took to get the house listable.
There are two waits in a listed sale and people usually only count the first. In Bellmore the median house takes about 28 days to go from listed to a signed contract. Then it waits again, typically 45 to 60 days, while the buyer's lender orders an appraisal and underwrites the loan. Call it 73 to 88 days from sign to keys, assuming nothing goes wrong.
The part worth understanding is what a signed contract actually guarantees, which is less than most sellers assume. A retail buyer with a mortgage contingency can walk away right up to the end. If they do not qualify, if the appraisal comes in under the price, if they change their mind and let the financing lapse. A share of deals die exactly there, after months of waiting, and the house goes back on the market with time on it. We are not borrowing anything, so there is no lender to satisfy, no appraisal to come in low and no contingency to exercise.
| Listing with an agent | Selling to us | |
|---|---|---|
| Sale price | $859,559 (Bellmore median) | Our written offer |
| Commission | −$42,978 | None |
| Seller closing costs | −$17,191 | We can cover them |
| Repairs before listing | Out of pocket | None |
| Cleanout | Yours | Ours |
| Showings | Until it sells | One visit |
| Listed to signed contract | 28 days (Bellmore median, once listable) | 24 hours to a written offer |
| Contract to closing | 45 to 60 days (waiting on the buyer's lender) | A date you choose |
| Total wait | 73 to 88 days if nothing falls through | Yours to set |
| Can the buyer walk? | Yes (mortgage contingency runs to the end) | No financing to fall through |
| Before repairs and carrying | $799,390 | The number we put in writing |
The agent column uses a 5% commission and about 2% of seller closing costs, which are typical rather than fixed. It leaves out repairs and holding costs because no two houses are alike there. Where a house is in good condition, listing with a capable agent can beat our number, and we will be upfront if that is the case.
What unpermitted work costs you on the Bellmore open market
The median house in Bellmore sold for $859,559 and took about 28 days to go under contract, then another 45 to 60 days waiting on the buyer's mortgage. That is 73 to 88 days in total, for a house that was ready to show on day one. That is the ordinary path, for a house whose paperwork matches the building.
Unpermitted work adds a third wait that belongs to the town rather than to either party. You would be funding drawings and applications up front, on a house you are leaving, with no certainty about the timeline and none about the outcome. Run that against a clean sale on a date you choose before you commit to it.
How we arrive at a number on a house with unpermitted work
The honest answer on a house with unpermitted work is that we work backwards from what it is worth once it is fixed, subtract what fixing it costs, and subtract what we need to make for the risk of being wrong about either. There is no secret to it and no algorithm.
- What it is worth repaired. Not the Bellmore median of $859,559 on its own, but what houses like yours on your street actually closed at recently.
- What the work costs. Roof, boiler, electric, the kitchen and bath. In Bellmore the stock is largely hi-ranch and cape cod, and on houses that age the mechanicals are usually the expensive part rather than the cosmetics.
- How long we will hold it. The median Bellmore house goes under contract in about 28 days once it is showable, then waits 45 to 60 days more on the buyer's lender. Ours has to get to showable first, and we carry taxes and insurance across the whole of it.
- What we are wrong about. Opening a wall finds things. That risk is priced in, which is a large part of why a cash number sits below a retail number.
Why the number works for us and not for you
This is the part most cash buyers are vague about, so here it is plainly. We run millions of dollars of construction a year. That volume buys materials at contractor pricing and keeps the same crews working year round, which means the identical renovation costs us roughly half what a homeowner would pay to have it done.
That gap is the business. It is also why doing the work yourself before selling so rarely pays: you would be buying the same roof and the same boiler at retail, then hoping the market hands it back to you at resale. It usually does not. We are not making money because you sold cheaply. We are making it because we build cheaply.
And if the number does not work for you, say so. We would rather hear that than talk anyone into anything. We will look at your situation and tell you honestly what we think your options are, including the ones that do not involve us. Plenty of people are better off listing with an agent, and when you are one of them we will say so rather than let you find out later.
We buy Bellmore houses with the work left unpermitted
Tell us everything, including the parts you would rather not write down. When the deck went on, who finished the basement, whether a permit was ever pulled, whether the town has ever sent a letter about it.
None of it makes us withdraw and all of it makes our number solid the first time. Deals fall apart on partial information, and being renegotiated late is exactly the experience you are trying to avoid when there is work like this on the house.
Common questions
Will unpermitted work stop a buyer getting a mortgage on a Bellmore house?
It often does. A lender wants the certificate of occupancy to match what is physically there, and unpermitted work means it does not. The appraiser flags the discrepancy, the underwriter asks for the permit, and the buyer is suddenly waiting on a town approval nobody can put a date on. That is the mechanism behind most failed sales on houses with unpermitted work. We are not borrowing, so there is no appraiser and no underwriter to satisfy.
Do I have to pull permits before selling my Bellmore house?
No. Pulling permits after the fact is slow and expensive, and it is work we are already set up to do. Spending your own money and months on it before you have an offer in hand rarely makes sense.
The previous owner did the unpermitted work. Does that change anything?
It is extremely common and it does not affect our offer. What you are personally exposed to is an attorney question, but unpermitted work done by a previous owner is not a reason we walk away.
Will the town find the unpermitted work when I sell my Bellmore house?
A buyer's attorney will usually order a municipal search, which is where open permits and missing sign-offs surface. Selling to us does not require that search to come back clean.
There is already a violation for the unpermitted work. Can you still buy?
Yes. An open violation on unpermitted work is a file we take on at closing along with the house. It affects the number the way any real cost does, not the willingness.
How much does unpermitted work take off the price of a Bellmore house?
Enough to cover what it realistically costs to put right, and no more than that. We will show you how we arrived at the figure, and we do not move it afterward.