21 West 86th Street, Manhattan
Apartment building · 153 units · built c. 1927 · Block 1200, Lot 19.
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.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Nov 1, 2016: $172,500,000
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Upper West Side/Central Park West Historic District (Historic District). 50 Landmarks Preservation Commission permits are on file.