# 345 West 21st Street, Manhattan

Co-op · 20 units · built c. 1920 · Block 745, Lot 12.

On Umarelli: https://umarelli.org/nyc/1007450012/345-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

No building permits on file for this lot.

## Property taxes

- Assessment: $1,562,400
- 2026–27 tax: $155,733
- Market value (city estimate): $3,472,000
- Taxable value: $1,408,880
- Assessed land: $82,350
- Assessed improvements: $1,480,050

## Tax breaks

- Co-op and condo abatement, with no end date, a $19,707 credit this tax year.

## Zoning

R7B: floor area ratio 3.94 built, above the 3.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Jul 6, 2026: $570,000
- Apr 17, 2025: $550,000
- Feb 19, 2025: $625,000
- Aug 22, 2024: $555,000
- Aug 20, 2024: $640,000
- Dec 4, 2023: $538,000
- Jun 5, 2023: $550,000
- May 4, 2023: $545,000
- Apr 6, 2023: $525,000
- Jan 31, 2022: $520,000

The 10 most recent of 17 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