# 407 West 21st Street, Manhattan

Single family · built c. 1853 · Block 719, Lot 35.

On Umarelli: https://umarelli.org/nyc/1007190035/407-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

- Alteration, filed Jul 8, 2025, estimated cost $1K, described as “Proposed installation of temporary pipe scaffold as per plans. Work shall comply with chapter #33 of 2022 the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Jul 1, 2025, estimated cost $1K, described as “Installation of temporary heavy duty sidewalk shed as per plans. No change in use, egress or occupancy. Sidewalk shed shall comply with chapter #33 of 2022 the NYC building code. Live load 300PSF.”
- Alteration, filed May 6, 2025, estimated cost $200K, described as “Facade restoration work to include replacement of windows, restoration of decorative lintels and miscellaneous repairs to stonework as per plans submitted herewith. No change in use egress or occupancy.”

## Property taxes

- Assessment: $528,660
- 2026–27 tax: $104,902
- Market value (city estimate): $8,811,000
- Taxable value: $528,660
- Assessed land: $420,540
- Assessed improvements: $108,120

## Zoning

R7B: floor area ratio 2.98 built, 3.00 allowed by base zoning.

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard.

## Landmarks

Part of Chelsea Historic District (Historic District). 7 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