# 23 West 70th Street, Manhattan

Co-op · 9 units · built c. 1892 · Block 1123, Lot 21.

On Umarelli: https://umarelli.org/nyc/1011230021/23-west-70-street

More construction in Upper West Side: https://umarelli.org/nyc/manhattan/upper-west-side.md

Every lot on block 1123: https://umarelli.org/nyc/manhattan/1123.md

## Building permits

No building permits on file for this lot.

## 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.

From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology