# 311 West 21st Street, Manhattan

Apartment building · 15 units · built c. 1900 · Block 745, Lot 28.

On Umarelli: https://umarelli.org/nyc/1007450028/311-west-21-street

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

Every lot on block 745: https://umarelli.org/nyc/manhattan/745.md

## Building permits

- Alteration, filed Jul 29, 2019, estimated cost $4K, described as “Proposed installation of heavy duty sidewalk shed for remedial repairs as per plans. No change in use occupancy or egress under this application. Live load 300 per square feet. Sidewalk shed shall comply with chapter # 33 of the 2014 code.”

## Property taxes

- Assessment: $1,664,550
- 2026–27 tax: $163,113
- Market value (city estimate): $3,699,000
- Taxable value: $1,311,300
- Assessed land: $85,500
- Assessed improvements: $1,579,050

## Zoning

R7B: floor area ratio 3.92 built, above the 3.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Aug 30, 2016: $2,380,000

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