257 West 70th Street, Manhattan
Two-family · built c. 1895 · Block 1162, Lot 109.
Building permits
- Alteration, filed Jan 20, 2026, estimated cost $421K, described as “Reconfigure existing dwelling units, 2 duplex dweling uinits converted to 1 triplex (02-04 floors) and 1 single dewling unit ( 1ST floor). Interior renovation of the 2ND floor and minor renovation of 3RD and 1ST floor . No change in use or…”
- Alteration, filed Jul 9, 2021, described as “Sidewalk shed installed per plans, no change in use, egress or occupancy”
- Alteration, filed Jul 9, 2021, described as “Pipe scaffolding installed per plans, no change in use , egress or occupancy”
Property taxes
- Assessment
- $432,720
- 2026–27 tax
- $82,792
- Market value (city estimate)
- $7,212,000
- Taxable value
- $417,237
- Assessed land
- $316,320
- Assessed improvements
- $116,400
Zoning
R8B: floor area ratio 2.52 built, 4.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Landmarks
Part of West End-Collegiate Historic District Extension (Historic District). 6 Landmarks Preservation Commission permits are on file.