# 21 West 86th Street, Manhattan

Apartment building · 153 units · built c. 1927 · Block 1200, Lot 19.

On Umarelli: https://umarelli.org/nyc/1012000019/21-west-86-street

More construction in Upper West Side: https://umarelli.org/nyc/manhattan/upper-west-side.md

Every lot on block 1200: https://umarelli.org/nyc/manhattan/1200.md

## Building permits

- Alteration, filed Feb 23, 2026, estimated cost $417K, described as “Removal and installation of interior non-bearing partitions and related finishes as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Feb 17, 2026, estimated cost $70K, described as “Modification to existing HVAC system as per plans filed herewith. NO change in use, egress or occupancy.”
- Alteration, filed Feb 17, 2026, estimated cost $40K, described as “Modification to existing plumbing fixtures as per plans filed herewith. No change in use, egress or occupancy under this application.”
- Alteration, filed May 16, 2019, estimated cost $33K, described as “Installation of heavy duty sidewalk shed during building alteration, filed separately. Sidewalk shed shall comply with chapter #33 of the NYC building code. No change in use, occupancy or egress under this application.”

## Property taxes

- Assessment: $18,384,300
- 2026–27 tax: $2,286,610
- Market value (city estimate): $40,854,000
- Taxable value: $18,382,590
- Assessed land: $4,862,250
- Assessed improvements: $13,522,050

## Zoning

R10A: floor area ratio 12.27 built, above the 10.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Nov 1, 2016: $172,500,000

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

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard.

## Landmarks

Part of Upper West Side/Central Park West Historic District (Historic District). 50 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