Updated November 2026
When a homeowner in Staten Island or Brooklyn asks what their house is worth, the honest answer is that there is no single number. There are several values for your home, they can be tens of thousands of dollars apart, and most sellers anchor on the wrong one.
The Zestimate or Redfin estimate is an automated model built from public data. For a home that is not on the market, which is your situation when you are just wondering, the typical error runs around 6 to 7 percent or more, and that is a median, so half of homes are off by even more. On an 800,000 dollar home that is over 55,000 dollars either way. These models are especially shaky here because our housing changes block to block: attached versus detached, renovated versus original, a legal 2 family versus a 1 family. Use the online number as a hint, never as your asking price.
A comparative market analysis is what a good local agent does for you. It prices your specific home off recent, genuinely comparable closed sales in your neighborhood, adjusted for the real differences, your renovated bath, your finished basement, your bigger lot, your quieter block. It reflects what buyers are actually paying right now in your pocket of Staten Island or Brooklyn, and it is the number that should drive your list price.
When your buyer gets a mortgage, their lender sends an appraiser to protect the loan. An appraisal is backward looking and conservative, built from closed comps. In a fast market where buyers are bidding up, it can come in below the agreed price, which creates an appraisal gap to negotiate. It is there to protect the bank, not to tell you your open market value.
The assessed value on your New York City property tax paperwork is a tax figure, not a sale price. For a 1 to 3 family home the Department of Finance runs its own valuation, and caps limit how fast it can rise each year, so for long held homes the city number lags far behind reality. It is completely normal for a home that would sell for 800,000 or 900,000 to carry a much lower city value on paper. Never use your tax assessment to set your price.
Under all four values, the real answer is simple: your home is worth what a ready, willing, and able buyer will pay right now. That comes down to condition, the specific micro location (the block, the flood zone, parking, schools), truly comparable recent sales, and current buyer demand, which in late 2026 is shaped by tight inventory and mortgage rates in the 7s.
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