# 457 West 24th Street, Manhattan

Four-family · built c. 1850 · Block 722, Lot 7.

On Umarelli: https://umarelli.org/nyc/1007220007/457-west-24-street

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

Every lot on block 722: https://umarelli.org/nyc/manhattan/722.md

## Building permits

- Alteration, filed Jul 8, 2026, estimated cost $479K, described as “Minor interior demolition, renovation, and alteration of existing 4-family residence to be converted to a 2-family residence. Work to include general construction, carpentry, and fixtures,. No exterior work proposed. No change in building…”

## Property taxes

- Assessment: $1,144,350
- 2026–27 tax: $55,002
- Market value (city estimate): $2,543,000
- Taxable value: $442,172
- Assessed land: $387,000
- Assessed improvements: $757,350

## Zoning

R7B: floor area ratio 1.38 built, 3.00 allowed by base zoning.

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard. FEMA’s preliminary map: zone X, moderate risk: a 0.2% chance of flooding each year.

## Landmarks

Part of 457 West 24th Street House (Individual Landmark). 8 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