# 457 West 21st Street, Manhattan

Apartment building · 10 units · built c. 1854 · Block 719, Lot 9.

On Umarelli: https://umarelli.org/nyc/1007190009/457-west-21-street

More construction in Chelsea: https://umarelli.org/nyc/manhattan/chelsea.md

Every lot on block 719: https://umarelli.org/nyc/manhattan/719.md

## Building permits

No building permits on file for this lot.

## Property taxes

- Assessment: $1,096,650
- 2026–27 tax: $65,745
- Market value (city estimate): $2,437,000
- Taxable value: $528,541
- Assessed land: $230,400
- Assessed improvements: $866,250

## Zoning

R7B: floor area ratio 2.29 built, 3.00 allowed by base zoning.

## Flood zone

Current FEMA flood map: zone X, moderate risk: a 0.2% chance of flooding each year. FEMA’s preliminary map: zone AE, high risk: a 1% chance of flooding each year, base flood elevation 10 ft (NAVD88).

## Landmarks

Part of Chelsea Historic District (Historic District). 3 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