171 23rd Street, Brooklyn
Three-family · built c. 1899 · Block 645, Lot 45.
Building permits
- Alteration, filed Apr 7, 2022, estimated cost $39K, described as “File this application install new plumbing fixtures for existing residentail building ,plumbing work involved only.no change to use,egress and c of o.”
- Alteration, filed Apr 7, 2022, estimated cost $140K, described as “Interior renovation for existing 4 family units ,plumbing ,mechanical and structural work involved ,no change of use, egress occupancy.”
Property taxes
- Assessment
- $143,340
- 2026–27 tax
- $6,142
- Market value (city estimate)
- $2,389,000
- Taxable value
- $30,954
- Assessed land
- $16,680
- Assessed improvements
- $126,660
Zoning
M1-2D: floor area ratio 1.40 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Dec 20, 2021: $1,665,000
Open-market sales since 2016, from the Department of Finance’s sales files.