909 UNION STREET is a 6-unit building in Park Slope, Brooklyn, built in 1895.
CurbScoop has 1 recorded sale on this tax lot, most recently $4.70M on Aug 10, 2026.
1 of those closed in the last five years, at a median of $4.70M.
1 unit is on the market here right now.
City records show 6 DOB permits and 7 open violations on file.
| Address | Neighborhood | Price | $/ft² | Sqft | Beds/Baths | vs comp | DOM | Risk | Score | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 909 UNION STREET Brooklyn · built 1895 | Park Slope | $4.89M | - | 0 ft² | 7 bd · 5 ba | +4.1% | 94 | bedbug | 10.2 | Source |
Every recorded deed for this tax lot.
| Recorded | Unit | Type | Price |
|---|---|---|---|
| Aug 20, 2026 | - | DEED | $4.70M |
Research contract nyc_property_research.v1 · snapshot Sep 12, 2026
This identifier represents an NYC tax lot. Condo and co-op apartment identity must be resolved separately.
NYC Department of City Planning (PLUTO)
Pipeline completed Sep 6, 2026
The current PLUTO pipeline is configured for Manhattan and Brooklyn.
PLUTO describes the tax lot and buildings, not legal ownership of an individual apartment.
StreetEasy, observed by CurbScoop
Pipeline completed Aug 31, 2026
The current sales-listing pipeline is configured for Manhattan and Brooklyn.
Listing observations describe marketed state and are not proof of a closing or exhaustive market coverage.
NYC Department of Finance, Office of the City Register (ACRIS)
Pipeline completed Sep 12, 2026
Deed document types associated with this BBL in the current CurbScoop corpus.
Recording can lag a transaction, and a deed with no stated consideration is not evidence of a market sale.
NYC Department of Buildings via NYC Open Data
Pipeline completed Sep 12, 2026
The current DOB permit pipeline is configured for Manhattan and Brooklyn.
A filing or permit does not prove that work was completed or that all work at the property was filed.
NYC Department of Housing Preservation and Development via NYC Open Data
Pipeline completed Sep 12, 2026
The current HPD violation pipeline is configured for Manhattan and Brooklyn.
Status and correction timing come from the published agency record and may change after CurbScoop observes it.
NYC Department of Buildings via NYC Open Data
Pipeline completed Sep 12, 2026
The current DOB violation pipeline is configured for Manhattan and Brooklyn.
Absence from the current corpus is not proof that a building has no regulatory issue.
Counts and dates describe the current CurbScoop corpus. They are not a guarantee of exhaustive agency or listing coverage.
The transaction history above comes from ACRIS, the city's register of recorded deeds - it shows what actually closed, not what was asked. To compare that against what similar units are listed at, see how to find comps and asking price vs sale price. The BBL identifying this lot is explained in what is a BBL. Wider context for the area is on the Park Slope market page.