# 341 West 20th Street, Manhattan

Single family · built c. 1847 · Block 744, Lot 16.

On Umarelli: https://umarelli.org/nyc/1007440016/341-west-20-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 Nov 11, 2026, estimated cost $25K, described as “Direct Replacement of (2) 5-ton rooftop air-conditioning units on existing steel dunnage. Reconnect to existing ductwork and utilities.”

## Property taxes

- Assessment: $303,060
- 2026–27 tax: $37,725
- Market value (city estimate): $5,051,000
- Taxable value: $190,115
- Assessed land: $106,920
- Assessed improvements: $196,140

## Zoning

R7B: floor area ratio 1.30 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). 3 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