# 434 West 20th Street, Manhattan

Co-op · 7 units · built c. 1857 · Block 717, Lot 61.

On Umarelli: https://umarelli.org/nyc/1007170061/434-west-20-street

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

Every lot on block 717: https://umarelli.org/nyc/manhattan/717.md

## Building permits

No building permits on file for this lot.

## Property taxes

- Assessment: $3,158,550
- 2026–27 tax: $202,091
- Market value (city estimate): $7,019,000
- Taxable value: $1,624,658
- Assessed land: $567,000
- Assessed improvements: $2,591,550

## Zoning

R7B (part of the lot is R8A): floor area ratio 3.97 built, above the 3.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Sep 25, 2024: $1,905,000
- Dec 15, 2020: $883,000, Apt 9
- Jun 28, 2019: $2,725,000
- Jun 6, 2017: $1,835,000

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

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard. FEMA’s preliminary map: zone AE, high risk: a 1% chance of flooding each year, base flood elevation 10 ft (NAVD88).

## 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