Most people buying a home in New York City are choosing between two different things, not two prices for the same thing. A cooperative apartment is not a smaller, cheaper condominium; it is a different form of ownership altogether — shares in a corporation rather than title to real property. That distinction, easy to miss at the open house, decides how the purchase is financed, who has to approve it, how it is taxed, and how the home passes when the owner dies.
New York is one of the few American markets where the cooperative is a common way to own a home, and where a buyer must understand the two forms before signing anything. In a condominium, the buyer receives a deed to a unit of real property and an undivided share of the building's common elements, and holds that unit much as one holds a house. In a cooperative, the buyer receives shares in the corporation that owns the building, together with a proprietary lease that grants the right to live in a particular apartment; the buyer owns stock and a lease, not real estate. Both put a family in an apartment. They are not, in law, the same thing, and the differences reach further than the purchase price.
This article sets the two forms side by side — what each one is, how they differ at the closing table, how each is taxed, and, because it is the question a standing-counsel relationship is built to answer, how each passes at death and into a family's plan. It is written for the buyer weighing an offer, and for the family or advisor thinking a step beyond the purchase to how the home will eventually move to the next generation. It does not recommend one form over the other. Which is right depends on the building, the price, the buyer's finances, and what the buyer intends the apartment to become — a decision the comparison below is meant to inform, not make.
It is general information about New York law, not legal advice on any particular purchase, and the details of any cooperative or condominium are governed by that building's own documents — the proprietary lease and bylaws of a co-op, the declaration and by-laws of a condominium — which vary and control. The statutes and figures here are described in general terms and as the law stands in 2026; transfer-tax thresholds and building rules change. A purchase of any consequence should be reviewed by counsel against the actual documents and the buyer's actual circumstances, and reading or relying on this article does not create an attorney-client relationship.
What a co-op actually is — shares and a proprietary lease
A New York housing cooperative is a corporation, and the person who buys a co-op buys two things from it: a block of shares allocated to a particular apartment, and a proprietary lease that gives the shareholder the right to occupy that apartment. Both are personal property. The shareholder does not own the apartment as real estate and does not receive a deed; the corporation owns the building, and the shareholder owns stock in the corporation and a long-term lease from it. The number of shares tied to an apartment is set when the building is organized and roughly tracks the apartment's size and desirability, and those shares carry the shareholder's vote in the corporation and the shareholder's proportionate share of the building's costs.
Because the interest is personal property rather than real property, the financing looks different too. A buyer who borrows to purchase a co-op does not take out a mortgage in the ordinary sense; the loan is a share loan, secured by a pledge of the shares and the proprietary lease under Article 9 of the Uniform Commercial Code, and perfected by a UCC-1 financing statement rather than a recorded mortgage. The experience resembles a mortgage — a lender, a monthly payment, a security interest that can be foreclosed — but the legal machinery is the law of secured transactions in personal property, and a co-op's rules will often limit how much of the price a buyer may finance at all.
What a shareholder may and may not do with the apartment is governed by the proprietary lease and the corporation's bylaws and house rules, not by the general law of property. Those documents decide whether the shareholder may renovate, sublet, keep a pet, or sell, and on what conditions, and they bind the shareholder as a matter of contract. This is the feature that most distinguishes cooperative living: the shareholder holds an ownership stake and a tenancy at the same time, and the corporation — acting through its board — retains a continuing say in the apartment that a condominium board does not have. The governing documents are therefore the first thing counsel reads, because they, more than the statute, define what the buyer is actually acquiring.
A co-op buyer owns stock and a lease, not real estate — and that single fact drives everything that follows.
What a condominium actually is — real property under the Condominium Act
A condominium is the other form, and it is real property in the ordinary sense. New York's Condominium Act, Real Property Law Article 9-B, allows a building to be divided so that each unit is separately owned in fee, together with an undivided interest in the common elements — the land, the lobby, the roof, the systems shared by all. The buyer of a condominium receives and records a deed to the unit, holds title to it, and owns it much as an owner holds a freestanding house, subject to the condominium's declaration and by-laws. The unit can be mortgaged, sold, leased, or left by will as the owner's own real property.
The financing follows from the form. Because a condominium unit is real property, a buyer finances it with a conventional mortgage recorded against the unit, and the lender's security is a real-property lien rather than a pledge of stock. The unit is also separately assessed and separately taxed by the city as its own parcel of real estate, so the owner receives and pays a real-estate tax bill for the unit directly, rather than through the building. These are not merely technical differences; they change the closing costs, the monthly obligations, and the exemptions and abatements available to the owner, as the tax section below takes up.
The condominium is governed by its declaration and by-laws and run by a board of managers, but the board's control over who owns a unit is narrower than a co-op board's. A condominium board typically holds a right of first refusal — the right, when an owner agrees to sell, to step into the buyer's shoes and take the unit on the same terms — rather than the power to approve or reject the purchaser outright. In practice a right of first refusal is rarely exercised, and a condominium sale is closer to the sale of a house than to the application-and-interview a co-op requires. The owner's freedom to sell, lease, and transfer is correspondingly greater, which matters most at the two moments a family cares about: renting the unit out, and passing it on.
The closing table — approval, financing, and monthly cost
The clearest difference a buyer feels is at approval. A cooperative board may generally decline a prospective purchaser without giving a reason, and its decision is protected by the business-judgment rule — the principle, settled for cooperative governance in Matter of Levandusky v. One Fifth Avenue Apartment Corp., 75 N.Y.2d 530 (1990), that a court will not second-guess a board acting in good faith within its authority and in the building's interest. That discretion is broad but not unlimited: it may not be exercised in a way that violates federal, state, or city fair-housing law, which forbids discrimination on protected grounds. A condominium board, by contrast, ordinarily cannot reject a buyer at all; its right of first refusal lets it buy the unit itself on the same terms, but not choose who else may.
The cooperative form also lets the corporation set conditions that a condominium generally cannot. Many co-ops cap how much of the purchase price a buyer may finance, require a minimum amount of assets left over after closing, and restrict subletting sharply, so that the apartment stays owner-occupied. Many also charge a flip tax on a sale — a transfer fee, often a percentage of the price or the gain, set by the corporation's own governing documents and paid to the building. A flip tax is not a government tax; it is a private charge the co-op imposes on its own transfers, and it is one more cost a buyer should find in the documents before agreeing to a price.
The monthly bill differs in kind, not just amount. A co-op shareholder pays a single monthly maintenance charge that bundles the shareholder's proportionate share of the building's operating costs, its underlying mortgage, and its property taxes; part of that payment is the shareholder's share of the building's real-estate tax and mortgage interest, which is why a portion of co-op maintenance is typically deductible. A condominium owner pays common charges that cover operations alone, and pays the unit's real-estate taxes separately to the city. Comparing a co-op's maintenance to a condo's common charges without accounting for the taxes bundled into the first is a common way to misjudge which apartment actually costs more to hold.
A flip tax is not a government tax; it is a private charge the co-op imposes on its own transfers — one more cost to find in the documents before agreeing to a price.
Taxes and the cost of transfer
On a purchase, both forms attract transfer tax, and a buyer should not assume that shares escape it. New York State's real estate transfer tax, imposed under Article 31 of the Tax Law, and New York City's real property transfer tax both reach conveyances of cooperative shares as well as deeds to real property, so the tax is charged whether the home is a co-op or a condo. On residential purchases at or above one million dollars, the additional mansion tax under Tax Law § 1402-a applies to both forms as well, on a graduated scale that rises with the price. The transfer taxes, in short, do not turn on which form the home takes.
One tax does turn on the form, and it can be a meaningful sum. New York's mortgage recording tax, under Tax Law § 253, is charged when a mortgage on real property is recorded — which means it applies to the mortgage on a condominium but not to the share loan on a cooperative, because a co-op loan is a pledge of personal property perfected by a UCC filing, not a recorded mortgage. On a large loan the recording tax is a real number, and it is one of the few closing costs where the co-op form is straightforwardly cheaper. A buyer comparing two apartments at the same price should count it.
Ongoing property-tax treatment differs as well. A condominium unit is separately assessed, and its owner claims any applicable exemptions or abatements — the STAR exemption, the co-op and condo abatement, veterans' or seniors' relief — against that assessment directly. A cooperative is assessed as a single building, and the tax benefits pass through the corporation to the shareholders in proportion to their shares, appearing as an adjustment to maintenance rather than a bill the shareholder files for alone. The net burden can come out similarly, but the mechanics are different, and the figures and thresholds change from year to year — which is why the tax comparison is best run on the actual apartments and the current rules rather than on rules of thumb.
How each passes at death — where real estate meets the estate plan
The difference that a family feels last is the one that lasts longest: how the home passes when the owner dies. Cooperative shares are personal property, and they pass through the owner's estate like other personal property — but the proprietary lease usually gives the corporation a continuing say in who may take them. Transferring shares to a surviving spouse, to children, or to a trust generally requires the corporation's consent, and many co-ops restrict or condition ownership by a trust or an estate, or expect the shares to be sold rather than held by heirs who will not occupy the apartment. The result is that a co-op can be the hardest asset in an estate to move quietly, precisely because a board sits between the owner's plan and its execution.
A condominium passes far more like a house. Because the unit is real property the owner holds outright, it can be left by will, held in a revocable living trust that avoids probate on the owner's death, deeded to a limited liability company for a family's investment property, or given during life, subject only to the board's right of first refusal and to the ordinary law of real-property transfer. The owner who wants the apartment to move to the next generation without a court proceeding, or to sit inside a trust or entity built for the family's other holdings, will usually find the condominium the more cooperative instrument — an irony of the names.
This is the point at which a real-estate decision becomes an estate-planning decision, and where the two are best considered together rather than in sequence. Whether an apartment can be funded into a living trust, held through an entity, or passed to a beneficiary without a board's cooperation is not a detail to discover after the purchase; it is part of what the buyer is choosing at the outset. A buyer who intends the home to be a long-term family asset — the pied-a-terre that becomes a child's first apartment, the residence meant to pass without probate — has reason to weigh the two forms with that end in view. The firm advises on both the purchase and the plan it fits into, so that the form of ownership serves the family's intentions rather than surprising them years later.
A co-op can be the hardest asset in an estate to move quietly, because a board sits between the owner's plan and its execution.
Common questions
- Is a co-op cheaper than a condo?
- Sometimes, but the comparison is not as simple as the sticker price. Co-op apartments often list for less than comparable condos and avoid the mortgage recording tax, but a co-op's maintenance charge bundles property taxes and the building's underlying mortgage, while a condo's common charges do not — so a lower monthly figure on a co-op is not automatically a lower cost to hold. Weigh the purchase price, the transfer and recording taxes, the monthly charges with taxes counted in, and any flip tax together, on the actual apartments.
- Can a co-op board really reject me without a reason?
- Generally, yes. A New York cooperative board may decline a prospective purchaser without explaining why, and courts will not second-guess a good-faith decision within the board's authority under the business-judgment rule. The important limit is that a board may not reject a buyer for a reason forbidden by fair-housing law — race, religion, national origin, disability, familial status, and other protected grounds. A condominium board, by contrast, usually cannot reject a buyer at all; it holds only a right of first refusal.
- Which is easier to leave to my children or put in a trust?
- Usually the condominium. Because a condo unit is real property you own outright, it can be placed in a revocable trust, deeded to an LLC, or left by will much like a house, subject to the board's right of first refusal. Co-op shares are personal property, and transferring them to heirs or a trust generally needs the corporation's consent, with some buildings restricting trust ownership outright. If passing the home on without friction matters to you, raise it before you buy, not after.