23 West 70th Street, Manhattan
Co-op · 9 units · built c. 1892 · Block 1123, Lot 21.
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Building permits
Permit records are unavailable right now; the map lists them once the city responds.
Property taxes
- Assessment
- $2,257,650
- 2026–27 tax
- $109,329
- Market value (city estimate)
- $5,017,000
- Taxable value
- $878,922
- Assessed land
- $427,500
- Assessed improvements
- $1,830,150
Zoning
R8B: floor area ratio 3.20 built, 4.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Landmarks
Part of Upper West Side/Central Park West Historic District (Historic District). 2 Landmarks Preservation Commission permits are on file.