Condominiums in New York are governed by Article 9-B of the state’s Real Property Law, usually called the Condominium Act. It sets the rules for how a condo building is created, how it is run, how costs are split among owners, and what happens when someone falls behind or ends up in a fight with the board. Unlike a co-op, where you own shares in a corporation, a condo owner holds a deed to the individual unit plus a proportional interest in the shared parts of the building. That ownership structure drives nearly every legal obligation that follows.
The Offering Plan: What Buyers See First
A New York condominium begins with a sponsor, typically a developer or building owner, who prepares an offering plan and files it with the Attorney General’s Real Estate Finance Bureau.1Legal Information Institute. New York Compilation of Codes, Rules and Regulations Title 13 20.2 – Procedure for Submission Filing is mandatory before any unit can be sold or even advertised. The plan is the single most important document a prospective buyer will read.
It is a comprehensive disclosure package. The cover must state the total dollar amount of the offering, the number of units, and any working capital or reserve the sponsor is contributing. Inside, the plan carries a first-year operating budget, individual energy cost projections, the sponsor’s statement of building condition, and offering prices for every unit. A “Special Risks” section flags anything that could disproportionately affect common charges or owner obligations later, and the regulations tell sponsors to err on the side of disclosure.2New York State Attorney General. 13 NYCRR Section 20.3 – Format and Content
One warning on the cover deserves attention. State acceptance of the filing is not a stamp of approval. The Attorney General’s office reviews the plan for compliance with disclosure rules, not for quality or soundness. Buyers who assume otherwise are reading the wrong signal.
The Declaration and Bylaws
Once the offering plan is accepted, the sponsor records a declaration that formally creates the condominium. The declaration must be recorded with the county recording officer or it is not valid, and it must also be filed with the New York Department of State, which acts as the registered agent for service of process against the board of managers.3New York State Senate. New York Real Property Law 339-S – Recording4Department of State. Condominium Declaration Floor plans go in at the same time, showing the layout, location, and approximate dimensions of every unit.5New York State Senate. New York Real Property Law RPP 339-P
The declaration is the founding document, and the statute lists what it must contain: a description of the land and building, the designation and approximate area of each unit, the common elements, and the common interest percentage assigned to each unit.6New York State Senate. New York Code RPP 339-N – Contents of Declaration That common interest percentage is the number that controls everything downstream. It sets your share of building expenses, your voting weight, and your proportional stake in shared property. The sponsor may calculate it by relative fair market value, by floor area, by equal shares, or by floor area adjusted for factors like location and amenity access.7New York State Senate. New York Real Property Law 339-I – Common Elements Whichever method the sponsor picks is locked in and cannot change without a formal amendment.
Common elements are the shared pieces of the building: the land, foundation, roof, exterior walls, hallways, lobbies, stairways, elevators, and mechanical systems.8New York State Senate. New York Real Property Law 339-E – Definitions The declaration can also designate “limited common elements,” which are shared areas reserved for specific units, such as a storage locker, parking space, or terrace tied to one apartment.
Every condominium must also adopt bylaws, recorded with the declaration, that govern day-to-day operations. The statute requires bylaws to address the nomination and election of the board and the number of board members.9New York State Senate. New York Real Property Law 339-V In practice they cover much more: meeting schedules, quorum, financial reporting, and how the bylaws themselves can be amended. The board can layer on house rules covering noise, pets, move-ins, and renovations. If an owner violates the rules, the board can sue for damages, seek an injunction, or recover money owed, and for repeated or flagrant violations the board can require that owner to post a surety bond guaranteeing future compliance.10New York State Senate. New York Real Property Law 339-J – Compliance With Bylaws and Rules and Regulations
The Board of Managers
The board of managers runs the condominium. Its members are elected by unit owners and function like a corporate board of directors. The board sets the annual budget, determines the monthly common charges each owner pays, manages reserve funds, and contracts for building services like maintenance, insurance, and utilities.
The board can also impose special assessments for expenses outside the regular budget, and this is where friction often starts. A large assessment can land on owners with little warning. Some bylaws require owner approval before the board can levy an assessment above a stated dollar threshold; others give the board unilateral authority. Reading the bylaws on this point before buying can prevent an expensive surprise.
Common Charges, Assessments, and Liens
Common charges are the recurring fees every owner pays to cover operating costs: maintenance, utilities, insurance premiums, staff, and contributions to reserves. Each owner’s share is proportional to the common interest percentage in the declaration.7New York State Senate. New York Real Property Law 339-I – Common Elements Special assessments for major items like a roof replacement or elevator overhaul follow the same split. Older buildings with deferred maintenance can produce assessments that hit hard, and New York does not currently require professional reserve studies, so the adequacy of a reserve fund depends on the board’s judgment and the bylaws.
Falling behind is serious. The board holds an automatic lien on every unit for unpaid common charges plus interest, and that lien sits ahead of nearly every other claim against the unit except property taxes and a first mortgage of record. The board can sue for a money judgment without foreclosing, or it can foreclose on the lien. When a unit is sold, any unpaid charges must be paid out of the proceeds or assumed by the buyer. Both sellers and buyers are entitled to request a statement from the board showing the exact amount owed, and neither party is liable for charges beyond what the statement shows.11New York State Senate. New York Real Property Law 339-Z – Lien for Common Charges
How Voting Works
Voting in a New York condo is weighted by common interest, not one vote per unit.7New York State Senate. New York Real Property Law 339-I – Common Elements A larger unit with a bigger percentage carries more weight than a smaller one. This is a core difference from co-ops. Routine votes include electing board members and approving the budget. Bigger decisions, such as amending the declaration or bylaws, selling common elements, or altering the building’s structure, generally require a supermajority spelled out in the governing documents. Proxy voting is typically allowed.
Property Taxes and Insurance
Each condo unit is assessed and taxed as a separate parcel, so every owner in New York City receives an individual tax bill directly from the city.12New York State Senate. New York Real Property Law 339-Y – Separate Taxation NYC condos sit in tax class 2 along with co-ops and larger rental buildings. The city does not use actual sale prices to value them. Instead it imputes rental income from comparable rental buildings, which usually produces assessed values well below market value.13NYC Independent Budget Office. The Coop/Condo Abatement and Residential Property Tax Reform
Insurance runs on two levels. The board must insure the building against fire and other hazards when the declaration, bylaws, or a majority of owners require it, and for qualified leasehold condominiums full replacement coverage is mandatory and must be updated annually. Premiums are treated as common expenses, though allocation can account for units that carry higher risk.14New York State Senate. New York Real Property Law 339-BB – Insurance The board must give every owner written notice of the coverage in place and any changes or cancellations.
The statute also preserves each owner’s right to insure the unit independently. In practice that means an HO-6 policy covering the interior, personal property, and personal liability. How much “walls-in” coverage you need depends on the master policy. If the building’s policy covers interior fixtures and finishes, you need less dwelling coverage than if it covers only the bare structural walls. Pulling the master policy’s declarations page before buying your own coverage is the way to avoid gaps or overlap.
Short-Term Rentals
Many condominium declarations and bylaws prohibit or restrict rentals shorter than 30 days. Buildings that want to enforce the ban can register on the NYC Office of Special Enforcement’s Prohibited Building List, which notifies platforms like Airbnb and VRBO that units in the building cannot be listed for short-term stays. Separately, anyone offering a short-term rental in New York City must register with the Office of Special Enforcement and get a registration number before listing. Rentals of 30 consecutive days or more are exempt from the registration requirement.15NYC.gov. Registration Law – OSE Booking platforms are barred from processing transactions for unregistered rentals, which gives the system real force.
Disputes With the Board
Conflicts between owners and the board usually center on rule enforcement, assessment disputes, and perceived overreach. Many bylaws require mediation or binding arbitration before anyone can go to court, and some bylaws make arbitration mandatory for particular categories of disputes, effectively blocking litigation on those issues.
When disputes do reach court, New York judges apply the business judgment rule to board decisions. The Court of Appeals held in Levandusky that the rule “furnishes the correct standard of review” for actions taken by cooperative and condominium governing boards enforcing building policy.16New York State Reporter. Matter of Levandusky v One Fifth Ave. Apt. Corp. Under that standard, a court will not second-guess a board’s decision as long as the board acted in good faith, within its authority, and with reasonable judgment. The rule protects even mistaken decisions. It does not shield bad faith or self-dealing. For an owner challenging a board, that means disagreement with the outcome is not enough. You need evidence that the board acted dishonestly, ignored its own governing documents, or served personal interests over the community’s.