# 428 West 20th Street, Manhattan

Condominium · 5 units · built c. 1857 · Block 717, Lot 7502.

On Umarelli: https://umarelli.org/nyc/1007177502/428-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

- Alteration, filed May 27, 2025, estimated cost $312K, described as “Interior renovation of existing apartment including the removal & installation of non-load bearing partitions, floor & wall finishes as per the drawings filed herein. No change in use, occupancy or egress.”
- Alteration, filed May 27, 2022, estimated cost $5K, described as “Proposed installation of heavy duty sidewalk shed as per plans. Live load 300 lbs per square feet. Sidewalk shed shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed May 6, 2022, estimated cost $5K, described as “Proposed installation of temporary pipe scaffold as per plans. Work shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Aug 24, 2021, estimated cost $197K, described as “Vertical enlargement & associated minor interior alterations.”

## Property taxes

- Assessment: $2,800,800
- 2026–27 tax: $69,465
- Market value (city estimate): $6,223,999
- Taxable value: $556,212
- Assessed land: $142,200
- Assessed improvements: $2,658,600
- Condo units with their own tax lots: 5

## Zoning

R7B: floor area ratio 2.69 built, 3.00 allowed by base zoning.

## Recent sales

- Jul 16, 2026: $2,750,000, Apt RES3
- Dec 30, 2021: $2,430,000, Apt RES3

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 X, moderate risk: a 0.2% chance of flooding each year.

## Landmarks

Part of Chelsea Historic District (Historic District). 6 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