ProofPrice

What did homes sell for in Brooklyn?

Home sale prices in the United States, from Connecticut OPM; New York City Department of Finance; Cook County Assessor's Office. This source is answered live, so the page shows how to ask, not a number.

Prices recorded in official records of completed sales. Asking prices are never used.

ProofPrice reads Connecticut OPM; New York City Department of Finance; Cook County Assessor's Office when you ask, so the answer is always the latest published. It comes with its period, its source and its licence; a range built from records is given only when at least 5 records sit behind it.

Ask for it: /api/v1/home-sales?country=US&town=Brooklyn

Where this comes from

Source
Home sales: Connecticut Real Estate Sales, NYC Rolling Calendar Sales, Cook County Parcel Sales, published by Connecticut OPM; New York City Department of Finance; Cook County Assessor's Office
Licence
Differs by dataset. Connecticut: Public Domain (licence field on the data.ct.gov record). New York City: NYC Open Data Terms of Use (no licence stated on the dataset; the Open Data Law requires no licence or restrictions on use). Cook County: no data licence stated on the dataset record; commercial reuse not yet confirmed with the Assessor's Office
Attribution
Connecticut Office of Policy and Management (Real Estate Sales 2001-2024 GL); New York City Department of Finance (NYC Citywide Rolling Calendar Sales, NYC Open Data); Cook County Assessor's Office (Assessor - Parcel Sales, Cook County Open Data). Figures are ProofPrice aggregates; none of the three publishers warrants the data.
How fresh the source is
Connecticut: annual file; New York City: monthly; Cook County: about twice a month (with a reporting lag)
Limits
Not nationwide: only Connecticut (by town), New York City (borough, neighborhood or ZIP code) and Cook County, Illinois (Chicago, the county, or an assessment township). Aggregates only, never addresses, parcel numbers or names. Sales under $10,000 and non-arm's-length sales are left out using each publisher's own flags. Connecticut's file is annual and currently ends 30 September 2025; New York City covers the last 12 months only; Cook County sales arrive with a lag.
Rule
A figure built from records is shown only when at least 5 records sit behind it; official statistics are shown as such, with their reference period. See how we earn trust and the method.

Ask your AI

Add the ProofPrice MCP server (https://proofprice.com/api/mcp) to your AI app, then paste this. Not connected yet? See how to connect.

Using the ProofPrice MCP server (pricepaid_home_sales): What did homes sell for in Brooklyn? Give the figure with its unit, the period it covers, the number of records where the source states one, and cite the source and licence.

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Information, not a valuation or offer. Ranges describe past recorded prices.