NYC remodeling contractor specializing in high-end kitchen, bathroom, and apartment renovations across New York City.
Condo Renovation NYC
Condo Renovations in New York City
Renovating a condominium in Manhattan or Brooklyn is not the same job as renovating a co-op, and the difference has almost nothing to do with the construction. The walls, the risers, the slab and the neighbours are the same. What changes is who has the authority to tell you no.
Gurri Remodel has been renovating New York apartments since 1997. This page is about the part of a condo renovation that owners find hardest to predict: the approval process, the paperwork the building will ask for, and the building-specific conditions that come with newer construction and sponsor-controlled buildings. If you own in a co-op instead, our co-op renovation page covers that process, which works differently.
What Condo Ownership Changes About Renovating
In a condominium you own real property. You hold a deed to your unit and an undivided interest in the common elements. In a co-op you own shares in a corporation and hold a proprietary lease, and the corporation is your landlord.
That distinction is the reason condo renovations tend to move more predictably. A condo board is administering a declaration and by-laws that define what it may require of you. It has less room to exercise open judgement about you as a person, and correspondingly less room to refuse a renovation it simply dislikes.
It does not mean there is no process. It means the process is more often a test against written criteria than a negotiation.
How Condo Approval Differs From Co-op Approval
The practical differences show up in four places.
Who reviews. Condo alteration applications are usually reviewed by a managing agent and the building’s engineer or architect, with the board approving on their recommendation. Co-op boards more often review directly and may interview.
What is being judged. A condo review is generally asking whether the work complies with the by-laws, the house rules and the building’s structural and mechanical limits. A co-op review can also weigh whether the board wants the disruption at all.
How long it takes. Condo approvals are frequently faster, though faster in a New York building still means weeks rather than days, and buildings with a single monthly board meeting set their own pace regardless of ownership structure.
What happens on refusal. A condo board that refuses a compliant application is on weaker ground than a co-op board doing the same thing. That is not an invitation to litigate — it is a reason the process is usually more mechanical.
What a Condo Board Can and Cannot Usually Refuse
A condo board is generally on solid ground refusing work that alters common elements without consent, that affects structural components, that moves plumbing in ways the by-laws prohibit, that would violate the building’s sound-attenuation standards, or that is submitted without the drawings, insurance and contractor documentation the alteration agreement requires.
It is on weaker ground refusing work that is entirely within your unit, complies with the by-laws and house rules, and is properly documented. Many refusals that owners experience as arbitrary are in fact an incomplete application: missing drawings, an unsigned agreement, a contractor whose insurance certificate names the wrong entities.
The most useful thing an owner can do is treat the submission as the job it is, rather than a formality.
Condo Alteration Agreements
Most New York condominiums require an alteration agreement before work begins. It is a contract between you and the condominium, and it typically sets out the scope you are permitted to build, the drawings the building has approved, the insurance every party must carry, the hours and access rules, the deposit the building holds against damage to common elements, and your responsibility for anything the work affects outside your unit.
Condo alteration agreements are often shorter and less onerous than their co-op equivalents, but they are still binding, and the obligations they impose on your contractor are real. We read the agreement before we price the work, because the agreement frequently dictates how the job has to be sequenced.
Insurance and Additional Insured Requirements in a Condo
Condo buildings almost always require the contractor to carry general liability and workers’ compensation, and to name specific parties as additional insured. In a condo those parties usually include the condominium itself, the board of managers and the managing agent — and in newer buildings, sometimes the sponsor as well.
Getting these names exactly right matters more than owners expect. A certificate naming the wrong entity is one of the most common reasons a start date slips. Gurri Remodel is a licensed and insured New York general contractor, and we handle the certificate request against whatever list the building supplies.
Sponsor Units, New Developments and Buildings Under Warranty
Newer condominiums bring conditions that simply do not exist in older buildings, and they are worth knowing about before you plan the work.
Sponsor units. In a building where the sponsor still controls unsold units, the sponsor may retain approval rights, and the house rules may still be the sponsor’s rather than the residents’. Timelines can depend on a party who is not the board.
Buildings still selling. A building in active sales often restricts work that affects the lobby, the elevators or anything a prospective buyer would see. Access and hours are tighter than they will be in five years.
Developer warranty. If the building or your unit is still inside a warranty period, altering finishes, mechanical systems or waterproofing can affect what remains covered. This is worth checking before the work is designed, not after.
Unfinished common areas. In new construction, protection requirements are often stricter precisely because the common areas are new and the building is protecting its own asset.
Concrete Slab Construction and What It Changes
Most post-war and new-construction condos are built on concrete slabs rather than the timber joists found in pre-war buildings. This changes what is realistic in three ways.
Plumbing is the main one. In a timber-framed building there is usually depth beneath the floor to run new waste lines. On a concrete slab there often is not, which is why moving a toilet or relocating a kitchen sink in a condo can be constrained in ways that surprise owners coming from a house. Solutions exist — raised floor sections, rerouting within existing chases — but they need to be designed, not improvised.
Sound is the second. Condo by-laws commonly specify a minimum underlayment rating and a percentage of floor area that must be carpeted or acoustically treated. Concrete transmits impact noise efficiently, and buildings enforce these rules because they receive the complaints.
Structure is the third. Slabs are not to be cut, cored or penetrated without engineering sign-off, and buildings are unambiguous about it. If your apartment is in an older building instead, our pre-war apartment renovation page covers timber-framed construction.
Work Hours, Protection and Building Coordination
Condo house rules set working hours, usually weekdays within a defined window, with restrictions around holidays. They govern service elevator booking, protection of lobbies and corridors, debris removal routes and where materials may be staged.
Newer buildings are frequently stricter about protection than older ones. The coordination work — booking elevators, submitting worker lists, keeping the building informed — is a real part of the job, and it is the part most likely to cost you time if nobody owns it.
Kitchen Renovation in a Condo Apartment
A condo kitchen renovation is governed mainly by what can be done with plumbing, gas and ventilation. Relocating a sink or dishwasher depends on the slab and the existing waste line. Ventilation is often restricted to recirculating hoods where there is no existing exterior duct. Gas work requires the building’s approval and, in many buildings, a licensed plumber filing with the city.
Within those constraints, condo kitchens allow a great deal. Our kitchen remodeling page covers the construction side in detail.
Bathroom Renovation in a Condo Apartment
Condo bathroom renovations concentrate on waterproofing, drainage falls and the building’s requirements for how a wet area is built above another owner’s ceiling. Buildings frequently require a specific waterproofing method and a leak test before tiling.
Fixture relocation is where the slab matters most. Our bathroom remodeling page sets out how we approach the work.
Full Condo Apartment Renovation
A whole-apartment condo renovation is largely a coordination exercise. One approval package, one insurance submission, one sequence of trades, and a schedule the building has agreed to. Doing it in one pass is almost always less disruptive than three separate projects, and buildings generally prefer it.
Our apartment renovations page covers scope and sequencing.
How Gurri Remodel Manages Condo Renovation Coordination
We read the alteration agreement and house rules first, prepare the contractor-side documentation the building requires, obtain certificates of insurance naming the parties the building specifies, coordinate with the managing agent on elevator access and working hours, and keep a single point of contact so the building is never chasing an answer.
Our process page describes how a project runs from first site visit to completion. What clients have said about working with us is on our reviews page.
Related Projects
A selection of completed New York apartment work is on our projects page, including our Tribeca apartment remodel.
Frequently Asked Questions
Is condo renovation approval easier than co-op approval in NYC?
Usually, yes. A condo board reviews your application against the declaration, by-laws and house rules rather than exercising open judgement, so the outcome is more predictable and the process is often faster. It is still a formal application with drawings, insurance and a signed agreement, and buildings that meet monthly move at that pace regardless.
What is a condo alteration agreement?
It is a contract between you and the condominium that governs the work. It sets out the approved scope and drawings, the insurance every party must carry, working hours and access rules, any deposit held against damage to common elements, and your responsibility for anything the work affects outside your unit.
Can a condo board reject my renovation?
It can, but its grounds are narrower than a co-op board’s. Work that alters common elements, affects structure, breaches the by-laws or arrives without the required documentation can be refused. Work confined to your unit that complies with the rules and is properly documented is much harder to refuse.
How long does condo renovation approval take?
It varies by building. The main factors are how often the board meets, whether the building uses an outside engineer or architect to review, and whether your package is complete on first submission. Incomplete applications are the most common reason approval drags, and they are avoidable.
What insurance does a condo building usually require?
General liability and workers’ compensation from the contractor, with the condominium, the board of managers and the managing agent named as additional insured. Newer buildings sometimes require the sponsor to be named as well. The exact wording matters — a certificate naming the wrong entity will be rejected.
Are sponsor-unit renovations different?
They can be. Where a sponsor still controls unsold units, the sponsor may retain approval rights and the house rules in force may still be the sponsor’s rather than the residents’. That means the timeline can depend on a party who is not the board, which is worth establishing early.
Do newer condo buildings have different renovation restrictions?
Often stricter ones. New buildings protect new common areas, buildings still in active sales limit anything visible to prospective buyers, and units still inside a developer warranty period can have coverage affected by alterations to finishes, mechanical systems or waterproofing.
Can plumbing be moved in a condo renovation?
Sometimes, but concrete slab construction limits it. Without depth beneath the floor for new waste lines, relocating a toilet or sink may require a raised floor section or rerouting within existing chases. What is possible depends on the building, and it needs to be established at design stage.
How does concrete slab construction affect renovation?
It affects plumbing, sound and structure. Waste runs are constrained by the lack of depth below the floor, impact noise travels efficiently so buildings enforce underlayment and floor-covering rules, and the slab itself cannot be cut or cored without engineering sign-off.
Does Gurri Remodel handle condo board documentation?
Yes. We read the alteration agreement and house rules, prepare the contractor-side documentation the building requires, obtain certificates of insurance naming the parties the building specifies, and coordinate with the managing agent on elevator access and working hours.
Talk to Us About Your Condo
If you are planning a renovation in a New York condominium and want to understand what your building will require before you commit to a design, get in touch. We will read your alteration agreement and tell you what the process looks like from there.