A useful comparable sale helps explain what a buyer would choose instead of your home. In New York City, that means looking past the address and bedroom count to the ownership type, building, apartment or house itself, and the terms of the sale. Ask why each property belongs in the comparison before discussing the price it suggests for yours.
The goal is a small set of understandable comparisons, with the strongest examples given the most attention. A long list of nearby transactions can look impressive while leaving the central pricing question unanswered.
Compare the kind of ownership first
Start by separating a co-op apartment, a condominium unit and a house. They should not be mixed into one price-per-square-foot average without explaining the differences a buyer would face.
As the New York Attorney General's co-op guidance explains, a co-op purchaser buys shares tied to an apartment and a proprietary lease; maintenance charges relate to those shares. For a co-op comparison, discuss the building's purchase requirements, financing rules, current maintenance and what it covers. For a condo, examine common charges, property taxes and the unit's ownership details. For a house, look closely at the building configuration, usable space and condition.
This does not mean every co-op is comparable with every other co-op. It means the comparison should begin with the actual product a buyer is considering, rather than treating all two-bedroom homes as interchangeable.
Look at the building and the home separately
A sale in your building is a useful starting point because some surroundings and services are shared. Then examine the particular unit: floor, light, outlook, layout, outdoor space, condition and any rights included in the sale. Confirm the basis for reported interior area before leaning heavily on a square-foot calculation.
A nearby building needs an additional comparison. Would the same buyer accept its access, amenities, services, ongoing expenses and ownership rules? Ask your agent to explain the competitive connection in ordinary language. Being on the same block does not supply that explanation by itself.
Building information matters beyond the finishes in an apartment. The Attorney General's co-op and condo buying guide points to board minutes and financial reports as sources of information about building issues and repair costs. It also distinguishes sponsor purchases from resales: an older offering plan may not describe current conditions in a resale building. Ask what current building information is available for both your home and a proposed comparison.
Verify what the closed price actually describes
For each sale, request the exact address and unit, closing date, recorded or otherwise verified price, and the source of the property details. Ask whether your agent has confirmed the condition at the time of sale, included spaces or rights, and any known concessions. A renovated kitchen today may not have existed when the property sold.
Separate an actual closed sale from an asking price, a pending transaction and an ownership transfer that may not represent an ordinary open-market sale. If the information is unclear, identify what needs checking before relying on that price. Missing transaction terms should remain a question, not become an invented adjustment.
Sale timing also needs interpretation. The closing date tells you when the transaction finished, but the parties may have agreed on price earlier. Ask whether the comparison reflects the conditions under which your home will compete now.
Give the strongest comparison more weight
Fannie Mae's comparable-sales guidance emphasizes similar physical and legal characteristics and appeal to the same market participants. It permits an older, more similar sale to be useful when a newer sale has important differences. That is appraisal guidance, not a formula for setting your asking price, but it provides a helpful question: which sale requires the fewest important assumptions to relate it to your home?
Ask your agent to identify the strongest comparison and explain its main differences. Then ask what the other sales add. One may help show the effect of a different layout; another may provide more recent market context. They do not all need to carry equal weight simply because they appear on the same report.
Test adjustments instead of accepting round numbers
When a comparison is adjusted for condition, outdoor space, floor or another feature, ask what supports the amount. A renovation invoice describes spending, not necessarily what a buyer will pay for the result.
Fannie Mae's adjustment guidance calls for market-based support instead of rules of thumb and distinguishes the cost of a seller concession from its effect on value. Use that distinction when discussing an adjusted range. You should be able to see which facts were observed and which dollar amounts involve judgment.
Consider a hypothetical Manhattan resale comparison. Apartment A has a similar layout in your building, but it sold before a planned assessment was announced. Apartment B sold more recently in another building, with a different maintenance charge and more open light. A is useful for understanding the layout and building; B may help with timing and alternative choices. Neither can be treated as your home at a different address. The assessment, expenses and light need discussion, and their price effects need evidence rather than automatic amounts.
Use the comparisons to explain a price range
After the closed sales have been evaluated, look at what a buyer can choose today. Relevant active listings show your current competition, not proof that their asking prices will be achieved. A pending listing may indicate interest, but its final price and terms may still be unknown.
Ask for a proposed range with a plain-language explanation: the sales that anchor it, the differences that matter most, and the alternatives a buyer would see beside your listing. Then discuss where to launch within that context and what new information would prompt a review.
Your mortgage payoff and moving plans matter to your decision to sell. Keep them in a separate net-proceeds conversation so they do not get mistaken for evidence of market value. A good comparison should help you understand the recommendation even if the conclusion is not the number you initially hoped for.
Review your New York City comparable sales with Caryl Berenato. Bring the sales you have been watching, your home's key features and any current building information. The useful next step is to determine which comparisons belong, what each one tells you, and how they support the price discussion.