340 West 55th Street, Manhattan
Co-op · 56 units · built c. 1925 · Block 1045, Lot 51.
Building permits
- Alteration, filed Dec 31, 2024, described as “File suspended scaffold outrigger systems for facade restoration and inspection”
- Alteration, filed Aug 8, 2022, described as “Installation of temporary pipe scaffold as per plans. No change in use, egress or occupancy.”
- Alteration, filed Mar 3, 2022, estimated cost $448K, described as “Facade Repairs as per plans filed herewith. No change to use, egress, or occupancy.”
- Alteration, filed Nov 18, 2021, described as “Installation of temporary sidewalk shed per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed Sep 3, 2020, estimated cost $43K, described as “Plumbing work associated with apartment renovation”
- Alteration, filed Feb 8, 2019, estimated cost $4K, described as “Install heavy duty sidewalk shed for remedial repairs. No change in use occupancy or egress under this application. Sidewalk shed shall comply with chapter 33 of the 2014 NYC building code.”
Property taxes
- Assessment
- $6,511,950
- 2026–27 tax
- $765,199
- Market value (city estimate)
- $14,471,000
- Taxable value
- $6,145,788
- Assessed land
- $490,500
- Assessed improvements
- $6,021,450
Zoning
R8: floor area ratio 6.51 built, above the 6.02 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jun 23, 2026: $818,000
- Feb 12, 2026: $885,000
- Dec 15, 2025: $580,000
- Dec 5, 2024: $580,000
- Oct 11, 2023: $629,000
- Feb 6, 2023: $825,000
- Jun 9, 2022: $560,000
- Jun 3, 2022: $540,000
- May 20, 2022: $1,265,000
- Apr 7, 2022: $600,000
The 10 most recent of 23 open-market sales since 2016, from the Department of Finance’s sales files.