718 Union Street, Brooklyn
Three-family · built c. 1899 · Block 956, Lot 22.
Building permits
- Alteration, filed Jul 27, 2026, estimated cost $156K, described as “Renovate portions of existing 3 story building and change use from (3) family dwelling to (1) family dwelling.”
Property taxes
- Assessment
- $174,360
- 2026–27 tax
- $9,043
- Market value (city estimate)
- $2,906,000
- Taxable value
- $45,574
- Assessed land
- $31,080
- Assessed improvements
- $143,280
Zoning
R6A: floor area ratio 1.36 built, 3.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- May 6, 2024: $2,700,000
Open-market sales since 2016, from the Department of Finance’s sales files.