421 West 57th Street, Manhattan
Co-op · 40 units · built 1940 · Block 1067, Lot 22.
Building permits
- Alteration, filed Sep 19, 2022, estimated cost $90K, described as “Repairs at exterior building entrance stair & platform.”
- Alteration, filed Jun 4, 2021, estimated cost $100K, described as “New installation new Boiler: FST-60 with 1,080 GPH DHW coil ,new Burner: Power flame C2-GO-25B. Temporary oil storage tanks filed under LAA application # M00364833-P1.”
- Alteration, filed Jun 4, 2021, estimated cost $40K, described as “Installation of new Chimney liner. No Change in use, egress, or occupancy.”
- Alteration, filed Jun 4, 2021, estimated cost $25K, described as “Filing application for plumbing work in relation to boiler installation. No change in use, egress, or occupancy.”
- Alteration, filed Jul 2, 2020, estimated cost $1K, described as “Installation of temporary heavy duty sidewalk shed and pipe scaffold as per plans. No change in use, egress or occupancy.sidewalk shed shall comply with chapter #33 of the NYC building code.live load 300PSF.”
- Alteration, filed Mar 4, 2020, estimated cost $9K, described as “Remove one (1) 3,000 gallon fuel oil storage tank.filing to address FDNY violation# E571798. No change in use, egress or occupancy.”
Property taxes
- Assessment
- $2,845,800
- 2026–27 tax
- $315,229
- Market value (city estimate)
- $6,324,000
- Taxable value
- $2,605,012
- Assessed land
- $450,000
- Assessed improvements
- $2,395,800
Tax breaks
- Co-op and condo abatement, with no end date, a $8,990 credit this tax year.
Zoning
R8: floor area ratio 4.86 built, 6.02 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jan 23, 2026: $323,000
- Sep 20, 2024: $201,944
- Sep 12, 2024: $193,866
- Feb 21, 2024: $157,000
- May 11, 2023: $650,000
- Dec 6, 2021: $610,000
- Aug 31, 2021: $328,000
- Oct 20, 2020: $313,000, Apt 4F
- Oct 9, 2020: $635,000, Apt 1D
- May 11, 2020: $444,086, Apt 2C
The 10 most recent of 13 open-market sales since 2016, from the Department of Finance’s sales files.