# 356 West 21st Street, Manhattan

Apartment building · 5 units · built 1940 · Block 744, Lot 70.

On Umarelli: https://umarelli.org/nyc/1007440070/356-west-21-street

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

Every lot on block 744: https://umarelli.org/nyc/manhattan/744.md

## Building permits

- Alteration, filed Oct 22, 2026, estimated cost $24K, described as “Interior renovation of apt 5. Partition changes to non-load-bearing walls as per plans. No change in use, occupancy, or egress.”
- Alteration, filed Jan 8, 2026, estimated cost $117K, described as “Interior renovation of apt 2, 3, and 4. Partition changes to non-load-bearing walls as per plans. No change in use, occupancy, or egress.”

## Property taxes

- Assessment: $2,342,700
- 2026–27 tax: $88,079
- Market value (city estimate): $5,206,000
- Taxable value: $708,089
- Assessed land: $810,000
- Assessed improvements: $1,532,700

## Zoning

C2-6A: floor area ratio 3.57 built, 4.00 allowed by base zoning.

## Recent sales

- Oct 8, 2025: $5,000,000

Open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

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

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