Selling a UES apartment with unapproved work is not necessarily impossible, but it is rarely a problem that can be solved by calling a contractor the week before closing.
“Unapproved” can mean several different things: work with no required Department of Buildings filing, an open or expired permit, missing inspections or sign-off, a renovation outside the plans approved by the building, or work completed without the written consent required by the co-op or condo documents.
That distinction matters. A cosmetic change may be exempt from a DOB work permit, while a building’s proprietary lease, declaration, bylaws, house rules, or alteration agreement may still require notice or consent. Conversely, a board’s written approval does not replace a City permit, inspection, certificate, or other governmental approval.
The seller’s first task is to identify which approval, if any, is missing.
As a practical starting point, this Manhattan paperwork guide from The New York City Broker explains why buyers, attorneys, lenders, and boards treat missing renovation paperwork as a transaction risk. The discussion below separates market preparation from legal conclusions, because the right cure depends on the work and the building.
Selling a UES Apartment With Unapproved Work: First Define the Issue
City approval and building approval are different
New York City regulates construction through the Department of Buildings and related agencies. A private building regulates an owner’s relationship with the co-op corporation or condominium association through its governing documents. These systems overlap, but neither one controls the other.
A DOB filing may be required for structural changes, plumbing or gas systems, electrical work, use or occupancy changes, egress changes, or other work outside permit exemptions. A board may separately require plans, engineer review, contractor information, insurance, a deposit, work-hour restrictions, and completion evidence.
Do not call an apartment “fully approved” merely because a contractor says the work was routine, a board once knew about it, or a permit appears somewhere in the file. Ask which approval was required, who could grant it, and whether the final work matches the approved scope.
Cosmetic does not always mean consequence-free
DOB identifies examples of work that may not need a work permit, including painting, plastering, installing new cabinets, replacing plumbing fixtures, resurfacing floors, and certain nonstructural repairs. The exemption is not a blanket exemption from every other law, license, safety rule, or private building rule.
Some ordinary plumbing work may be permit-exempt yet require a licensed master plumber; DOB separately permits certain simple fixture repairs without a permit or plumbing license. The actual scope controls. A new fixture may be different from moving a supply line or drain. Replacing a cabinet may be different from removing a wall, changing electrical wiring, or altering ventilation.
The answer depends on the actual work, not the seller’s shorthand description.
If the scope is uncertain, a registered architect, professional engineer, or qualified trade professional should review what was done. Do not ask a professional to bless a vague description. Assemble photographs, invoices, plans, contractor names, dates, permits, emails, and the building’s approval documents first.
The first records review: DOB NOW and BIS
Search both systems
NYC’s public records are divided between the Building Information System, commonly called BIS, and DOB NOW. BIS contains many older applications, permits, complaints, inspections, and violations. DOB NOW contains filings submitted through the newer platform. During the transition, one system is not a substitute for the other.
Search by address and, where available, by borough-block-lot, building identification number, or job number. Use the apartment number to match City records to building files. Pull the property profile, job filings, permit records, inspection status, certificates of occupancy, complaints, violations, and letters of completion.
Save the record date and status because a screen viewed today may not answer what was open or resolved when the work occurred.
If the public record does not contain relevant plans or older documents, a DOB records request may be needed. A clean-looking page is not proof that every historical plan exists, that work matched the plans, or that the board approved the renovation.
Look for open applications and incomplete closeout
An application can be approved without the project being complete. A permit can expire. Inspections can remain unscheduled, failed, or unsigned off. The seller’s file should distinguish the application status from the permit status and the final sign-off status.
DOB may issue a Letter of Completion for a minor alteration that does not require a new or amended Certificate of Occupancy. For a change in use, egress, or occupancy, the City may require a current or amended Certificate of Occupancy.
A pre-1938 building may have a Letter of No Objection where a certificate was not required at the time, subject to later changes.
Do not promise a buyer that “the permit is there” until the responsible professional confirms that the permit covers the actual work and that the required closeout is complete. An open application can create a separate problem even if no violation has been issued.
Violations, summonses, and title pressure
DOB and OATH records can be more serious than a missing piece of paperwork. DOB states that violation information is public and may appear in a property title search. Open violations can prevent an owner from selling or refinancing.
DOB also states that it will not issue a new or amended Certificate of Occupancy or Letter of Completion while DOB violations remain active. OATH summonses have separate correction and disposition procedures.
Payment alone is not the same as correction. For an OATH summons, the violating condition generally must be corrected and acceptable proof submitted. Depending on the matter, that proof can include permits, photographs, receipts, inspection results, or other documentation. Civil penalties may also need to be paid or waived.
A seller should obtain written confirmation of the status rather than rely on a contractor’s statement that a fine was paid.
A violation may concern the apartment, the building, or a recurring compliance obligation. The seller’s attorney should determine whether the issue affects the unit, common elements, title, closing deliverables, or lender requirements. A buyer may ask for a credit, escrow, price adjustment, repair obligation, or allocation of responsibility.
Co-op and condo board approval
Read the documents that govern the apartment
The Attorney General records identify 400 East 84th Street Owners Corporation as an Upper East Side cooperative with 144 residential units. That classification illustrates which ownership documents matter; it says nothing about the approval status of work in any apartment.
For a co-op, begin with the proprietary lease, alteration agreement, house rules, and any board or managing-agent procedures. For a condo, review the declaration, bylaws, rules, alteration agreement, and records showing the board’s consent. The current managing agent may require its own package even if the prior owner completed the work years ago.
A board’s authority and procedure are building-specific. Some buildings distinguish decorative work from work affecting walls, plumbing, electrical systems, flooring, windows, appliances, or building systems. Some require an architect or engineer, contractor insurance, additional insured status, deposits, indemnification, and final as-built plans. Others may have different thresholds or forms.
Condo law also restricts certain work that could jeopardize safety or soundness, reduce value, impair an easement, add a material structure, or excavate additional basement or cellar space without prior consent of all affected unit owners. That statutory rule does not mean every ordinary interior change has the same approval path. The declaration and bylaws remain essential.
Board consent is not a governmental sign-off
Professional model alteration agreements make the separation clear. Written board or engineer approval typically addresses the building’s private interests. The owner remains responsible for obtaining required DOB, FDNY, Landmarks Preservation Commission, and other governmental approvals, complying with the code, and completing inspections and sign-offs.
Do not backdate a board approval, recreate a missing consent letter, or describe a conversation with a superintendent as formal approval unless the building’s authorized procedure says it is. If the board will consider after-the-fact approval, ask its managing agent for the current process and document exactly what the board is approving.
The result may be approval as built, approval conditioned on alterations, a requirement to open walls, or a refusal.
Disclosure in a co-op or condo sale
New York’s statutory Property Condition Disclosure Act generally covers residential real property improved by a one-to-four-family dwelling, but its definition expressly excludes condominium units and cooperative apartments. The current state form also says it is not a warranty, is based on the seller’s actual knowledge, and is not a substitute for inspections or public-record review.
That exclusion is not permission to make inaccurate statements. A resale ordinarily involves a purchase contract, building application, governing documents, attorney review, and the parties’ representations. The original offering plan may be useful, but an individual resale does not require a new plan.
Disclose known material facts to counsel and do not say “all work was approved” without checking the records.
Do not use the outdated idea that a co-op or condo seller can simply choose between a disclosure statement and a $500 credit. That is not a safe description of the current law and does not cure inaccurate contract representations, an open violation, or missing board approval.
Insurance and unapproved work
A co-op shareholder’s unit policy and a condo owner’s policy do different work from the building’s master policy. New York’s Department of Financial Services explains that co-op policies generally cover contents and personal liability, while condo policies commonly cover unit contents, improvements, alterations, fixtures, and interior walls. The actual policy controls, including exclusions, limits, deductibles, and conditions.
Unapproved work does not support an automatic statement that insurance is void or that every later claim will be denied.
It can, however, create questions about what was represented to the insurer, what is covered, whether the work increased replacement cost or risk, whether a board-required additional insured was named, and whether a loss arose from the work or from a covered event.
Before listing, ask the insurance broker or carrier to review the work, policy, certificates, and building requirements. Keep the response in writing. If contractors performed the work, gather their certificates, licenses, contracts, and indemnification documents. Insurance review is especially important where plumbing, gas, electrical, structural, water-intrusion, or fire-safety work is involved.
Lender and appraisal implications
A buyer’s lender may not treat unapproved work as a simple seller-buyer issue. If an appraiser identifies an addition that lacks a required permit, Fannie Mae requires comment on its quality, appearance, and any effect on market value.
The lender may ask for plans, permits, a completion document, an engineer’s report, a repair escrow, or an appraisal reflecting the condition and marketability.
Fannie Mae’s guidance illustrates why the result is fact-specific. It allows appraisal treatment that reflects minor conditions in some circumstances, but serious deficiencies affecting safety, soundness, or structural integrity require correction before a loan can be delivered under its standards. Legal use, legal nonconforming use, illegal use, and the evidence supporting each can affect the analysis.
Fannie Mae’s rules do not govern every lender or every co-op loan. A lender may impose its own requirements, and a co-op transaction may involve building review, a recognition agreement, and project eligibility questions. A cash buyer’s willingness to proceed does not predict the result for a financed buyer.
Seller Strategy: cure, document, or price with contro
Build a fact file before listing
Create one folder containing the scope of work, dates, invoices, photographs, contractor information, plans, permits, inspection reports, board correspondence, alteration agreements, insurance certificates, and any completion letters. Put unresolved questions in a separate list. A buyer’s attorney will ask for the same story from several directions, so consistency matters.
Obtain professional triage
Ask a real-estate attorney to classify the transaction issue. Ask an architect or engineer to compare the physical apartment with the DOB record and determine whether legalization, an amended filing, a sign-off, or no City action is appropriate. Ask the managing agent what the building requires for an after-the-fact alteration review.
Ask the insurance professional and, where relevant, the likely lender what documentation will be needed.
Choose the remedy deliberately
A seller may be able to cure before listing, obtain a written board resolution, document that work was permit-exempt, complete a DOB closeout, correct a violation, or sell with a carefully drafted allocation of responsibility. The cheapest path is not always the safest path. Opening walls or filing a legalization application without understanding the building’s requirements can create new delays.
Price and market the real condition
Do not advertise an unverified renovation as fully legal, fully approved, or compliant. If the issue remains open, the contract should address the known facts, the buyer’s review, deadlines, credits or escrow, access for professionals, and what happens if the board, DOB, insurer, or lender requires additional work.
The seller’s attorney should draft the language; an agent should not improvise a legal cure.
Preparation can preserve options. For an unapproved-work sale file and realistic listing plan, TheNewYorkCityBroker.com/contact-me.
A practical timeline for a 2026 sale
Before listing
Confirm the ownership documents and building package. Search BIS and DOB NOW. Review the CO, TCO, LOC, or LNO position. Ask the managing agent for the alteration history and current requirements. Have professionals identify the work, the missing approval, the available cure, and the likely cost or timing.
Before accepting an offer
Tell the buyer’s side what is known and what remains under review. Provide documents that can be shared. Avoid an offer structure that assumes a clean permit record if the record has not been checked. Discuss whether the buyer will need financing and whether the building has a board package deadline.
Before contract and closing
Make sure the contract matches the facts. Track every open item, responsible party, deadline, payment, inspection, sign-off, and board decision. Obtain written evidence of resolution where possible. Closing agents, lenders, boards, and insurers should receive the same accurate description of the work.
Frequently Asked Questions
Often, yes, but a sale is not a cure. The practical result depends on whether the work violated DOB rules, whether a permit or closeout is missing, whether the building requires board consent, whether any violation is open, and whether the buyer’s lender and board will accept the condition.
A seller should identify the issue before listing, disclose known facts to counsel, and negotiate a contract that accurately allocates responsibility. A cash buyer may be more flexible, but that does not make the work approved or eliminate a violation. The seller should also confirm whether a board package, waiver, or managing-agent certification is required before the buyer can proceed.
No. NYC lists examples of permit-exempt work, including painting, plastering, new cabinets, some plumbing-fixture replacement, floor resurfacing, and certain ordinary repairs. The exemption depends on the actual scope. Moving plumbing, changing gas or electrical systems, removing structural walls, altering egress, or changing use or occupancy can require a filing, permit, inspections, and closeout.
A permit exemption also does not answer whether the co-op or condo requires private board approval or a licensed trade professional.
Search both BIS and the DOB NOW Public Portal by address and, where available, BBL, BIN, or job number. BIS contains many older filings, complaints, permits, inspections, and violations. DOB NOW contains newer filings and certain DOB NOW compliance records; complaints and some violations remain in BIS.
Review applications, permit status, inspection results, CO records, letters of completion, complaints, and violations. If plans or older records are missing, ask DOB about a records request. Save copies showing the date and status, and note the search date. Then have counsel or a design professional interpret them.
A record that says “approved” is not necessarily a final sign-off, and an old record may not reflect later physical changes.
Yes. The co-op’s proprietary lease and alteration documents, or the condo’s declaration, bylaws, rules, and alteration agreement, may require written consent, plans, engineer review, insurance, contractor information, deposits, and completion documents. DOB approval does not prove that the board consented. Board consent does not prove that the work complied with City law.
The seller should obtain the building’s current procedure and determine whether the board can review the work after completion or requires a different remedy. The managing agent should identify who has authority to issue the written consent and what documents must accompany the request.
The statutory PCDS generally does not apply to cooperative apartments or condominium units because those properties are excluded from the statute’s definition of residential real property. That does not mean a seller can make inaccurate statements or conceal a known issue. Contract representations, building and board materials, and facts disclosed during negotiations still matter.
Ask counsel whether separate disclosure duties arise on these facts. Have the seller’s attorney determine what must be disclosed and how any known unapproved work should be described in the contract and board package.
Not automatically. The appraiser may report unpermitted additions, quality, condition, marketability, or legal-use concerns. The lender may request permits, plans, an engineer’s report, repairs, an escrow, or a different underwriting decision. Insurance coverage depends on the policy, disclosures, exclusions, limits, and the cause of loss. The seller should not promise that coverage or financing is unaffected.
Ask the buyer’s lender, the insurance professional, the board, and the seller’s attorney what documentation is required for this specific work.
For selling a UES apartment with unapproved work, or another NYC sale, start with TheNewYorkCityBroker.com/contact-me.
