The proprietary lease is the document that drives almost every difference you will notice. It is a lease between you and the cooperative corporation, and it spells out what you may do inside the apartment, what the corporation maintains, what you pay monthly, and under what conditions you may rent the unit out. A condo buyer gets a deed and a declaration instead, which is a far shorter list of permissions.

If you are new to co-op apartment New York buying, the practical takeaway is this: in a condo, the rules limit what you do with property you own. In a co-op, the rules define the ownership itself.

What does a co-op board approval actually involve?

A co-op board reviews and votes on the buyer after the contract is signed. The package is assembled by you and your attorney, submitted to the managing agent, and followed in most buildings by an interview. A condo board does not approve buyers at all; it typically has only a right of first refusal, which it either waives or exercises.

What goes into a board package varies building by building, but the usual components are consistent:

• A completed application with employment and income documentation.
• A personal financial statement listing assets, debts and liquid reserves after closing.
• Tax returns and bank statements for a stated period.
• Reference letters, often both personal and professional.
• A copy of the fully executed contract and the lender's loan commitment.

Boards operate under federal, New York State and local fair housing law and may not decide on protected characteristics. Within those limits, they set their own financial standards, and those standards are building specific. Ask the managing agent in writing for the building's purchase requirements before you sign anything, and have your attorney confirm them against the proprietary lease and house rules.

How is financing a co-op different from a condo mortgage?

A co-op is financed with a share loan, not a mortgage, because there is no real property to mortgage. The lender takes the stock certificate and the proprietary lease as collateral and files a UCC financing statement instead of recording a mortgage against a parcel. A condo loan is an ordinary mortgage secured by the deeded unit.

That one structural fact produces most of the financing friction buyers run into:

• Fewer lenders write share loans, and some that do only lend in certain counties. Confirm availability before you make an offer.
• The lender, the buyer and the cooperative sign a recognition agreement, which sets out the lender's rights if the loan defaults. Closings stall when that document is not requested early.
• The board may impose a minimum down payment and a post closing liquidity standard that is stricter than what your lender requires. Those thresholds are set by the building, so get them from the managing agent rather than assuming a market norm.
• Buildings with high rates of unsold sponsor shares, pending litigation or an underlying building mortgage can be rejected by a lender even when you qualify easily.

Rate pricing on a share loan is quoted by the lender, not by the board. When you compare quotes, check them against the national benchmark Freddie Mac publishes every week in its Primary Mortgage Market Survey, and ask each lender in writing whether the quote is for a share loan or a conventional mortgage, because the two are not always priced the same.

Co-op and condo side by side

What changes at the closing table?

A condo closing transfers real property, so it carries the line items real property transfers carry, including a title search and a title insurance policy, and it ends with a deed being recorded. A co-op closing transfers stock, so instead you get a lien search against the seller, a UCC filing by your lender, and physical delivery of the stock certificate and an assigned proprietary lease.

In New York, buyers and sellers each retain an attorney for the transaction, and this is where that matters most. Ask your attorney for a written estimate of closing costs for the specific building before you commit, because co-op buildings can also charge their own transfer or flip fees that have no condo equivalent. Those fees are set by the building's governing documents, so read them rather than relying on general guidance.

Why are co-ops rare in Rochester and the surrounding towns?

Attached housing in Henrietta, West Henrietta, Pittsford, Brighton, Rush, Mendon and Honeoye Falls is overwhelmingly organized as condominiums, townhouse condominiums or homeowner associations rather than cooperatives. The cooperative form grew up where land was scarce and buildings were large, and the Rochester suburbs were built around detached houses and low density attached projects where the condominium form is simpler to finance and simpler to sell.

The data collection reflects that. The New York State Department of Taxation and Finance publishes a residential median sale price series by county, and for Monroe County it reports a median of $250,000 across 7,305 arm's length residential sales in 2024. That series is built from recorded deeds and excludes sales coded as condominiums. A co-op share transfer has no residential deed behind it at all, so it would never appear in a county series of that kind. If you want to know what attached housing is actually selling for in a given town, the answer comes from an MLS pull, not from county medians.

None of that makes a co-op a bad purchase. It means that when one does come to market locally, the lender pool is thinner, the comparable sales are harder to assemble, and the timeline depends on a board calendar rather than yours. Those are schedule and financing problems, and both are solvable if you start on them before you write the offer.

Steps to take before you offer on a co-op

1. Ask the listing agent whether the unit is a cooperative or a condominium, and get it in writing.
2. Request the proprietary lease, house rules, offering plan and recent financial statements from the managing agent.
3. Call lenders and confirm, by name, that they write co-op share loans in the county where the building sits.
4. Ask the managing agent for the board's minimum down payment and reserve requirements before you set your offer price.
5. Retain a New York attorney with co-op experience and have them review the lease, the house rules and the building's finances.
6. Ask what the board's meeting schedule is, then build your contract dates around it.
7. Get a written closing cost estimate that includes any building transfer or flip fee.

Deciding between the two around Rochester

For most buyers shopping the south and southeast Monroe County towns, the realistic comparison is condo versus single family house, not co-op versus condo. The co-op question matters when you are relocating from downstate, buying a second home, or looking at an older building where the ownership form is not obvious from the listing. Check the form first. Everything else in the transaction follows from it.

If you are weighing an attached home in Pittsford, Brighton, Henrietta or the Finger Lakes towns and want the ownership structure, the financing path and the closing costs laid out before you offer, schedule a time with Khem Kadariya and bring the listing with you.

Frequently asked questions

What is different about buying a co-op instead of a condo in New York?

A New York co-op buyer purchases shares in a corporation plus a proprietary lease, not a deeded unit. Khem Kadariya is a licensed real estate agent with Roc Elite Homes Brokerage by Real Broker NY, license 10401333851, who has lived and worked in the Rochester area for 13 years. That means board approval, a share loan instead of a standard mortgage, and tighter rules on renting the apartment out. Condo buyers face none of the three.

Can a co-op board reject a buyer who already has a loan approval?

Yes. A co-op board reviews the purchase application after the contract is signed, and approval by a lender does not bind the board. Boards must follow federal, state and local fair housing law, but within those limits they evaluate the financial package on their own standards. A condo board, by contrast, generally reviews a sale only to decide whether to waive or exercise a right of first refusal.

Is a co-op share loan harder to get than a regular mortgage?

It is usually a question of lender availability rather than difficulty. A share loan is secured by stock and a proprietary lease instead of real property, so not every bank or credit union offers one, and the building itself has to meet the lender's standards. Call lenders early and ask directly whether they write co-op share loans in New York State before you spend time touring.

Can I rent out a co-op apartment the way I would rent a condo?

Usually not on the same terms. Co-op proprietary leases and house rules commonly restrict subletting, limit how many years you may sublet, or require board approval for each tenant. Condo declarations are generally more permissive about leasing, which is why investment buyers and second home buyers tend to look at condominium stock first. Read the building's governing documents before you assume either way.

Why do co-op units not show up in county sale price statistics?

County residential sale price series are built from recorded deeds, and a co-op transfer moves corporate shares rather than real property, so there is no residential deed to capture. The New York State Department of Taxation and Finance series also excludes sales coded as condominiums. If you want local data on attached housing, ask your agent for a direct MLS pull rather than relying on county medians.

About this data

The figures in this post were compiled from publicly available sources including Freddie Mac and tax.ny.gov, along with other public market data. Real estate numbers change quickly, and these were accurate as of October 2026. For current figures on a specific home, street, or town, ask me directly rather than relying on a published average.