# 421 West 20th Street, Manhattan

Seminary · built c. 1892 · Block 718, Lot 97.

On Umarelli: https://umarelli.org/nyc/1007180097/421-west-20-street

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

Every lot on block 718: https://umarelli.org/nyc/manhattan/718.md

## Building permits

No building permits on file for this lot.

## Property taxes

- Assessment: $779,850
- 2026–27 tax: $80,654
- Market value (city estimate): $1,733,000
- Taxable value: $743,490
- Assessed land: $271,800
- Assessed improvements: $508,050

## Zoning

R7B: floor area ratio 1.74 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). 4 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