# 436 West 20th Street, Manhattan

Apartment building · 7 units · built c. 1835 · Block 717, Lot 62.

On Umarelli: https://umarelli.org/nyc/1007170062/436-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 Jun 9, 2023, 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 Jun 9, 2023, estimated cost $7K, 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 Jun 9, 2023, estimated cost $5K, described as “Installation of temporary construction fence as per plans. No change in use, occupancy, or egress under this application.”
- Alteration, filed Jan 7, 2022, estimated cost $529K, described as “Propose conversion of existing multi-family to a single family house with general construction works; no change of existing bulk & building height. Obtain a new c of o as required.”

## Property taxes

- Assessment: $2,176,200
- 2026–27 tax: $65,954
- Market value (city estimate): $4,836,000
- Taxable value: $530,221
- Assessed land: $266,850
- Assessed improvements: $1,909,350

## Zoning

R7B (part of the lot is R8A): floor area ratio 2.04 built, 3.00 allowed by base zoning.

## 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). 19 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