511 West End Avenue, Manhattan
Co-op · 62 units · built c. 1926 · Block 1246, Lot 36.
Building permits
- Alteration, filed Jul 28, 2025, estimated cost $41K, described as “General interior renovations of apartment 10A. Minor partition removal and replacement, reconfiguration of bedrooms. No change in use, egress or occupancy.”
- Alteration, filed May 7, 2025, described as “Inspection using industrial rope access techniques and methods. See attached plans designated primary site supervisor: Brian Barco”
- Alteration, filed Dec 13, 2023, estimated cost $19K, described as “Correcting the swarmp conditions as cited in the 9TH cycle fisp report filed with the new york city department of buildings. No change in use, egress or occupancy.”
- Alteration, filed Sep 30, 2022, estimated cost $26K, described as “Remove and install plumbing fixtures as per plans submitted herewith.”
- Alteration, filed Jun 15, 2022, estimated cost $100K, described as “Partial interior renovation to existing apartment 3C on the 3rd floor .Remove and construct new partitions, modify to ceiling and floor were required, replace windows . All as per plan . No change in use egress or occupancy.”
- Alteration, filed Apr 21, 2022, estimated cost $198K, described as “Interior renovation of existing apartment 4C. No exterior work. No change in use, occupancy and egress.”
- Alteration, filed Apr 20, 2022, estimated cost $25K, described as “Plumbing work at existing apartment 4C. New-(1)lav, (1)shower, (1)sink, (1)washer, and rel - (1)tub, (1)lav, (1)wc, (1)dish washer, (1)sink-res and rep- (1) cooking equip-res. Cellar: gas piping at gas meter bar.”
- Alteration, filed May 11, 2020, estimated cost $20K, described as “Remove, replace, relocate and install plumbing fixtures”
- Alteration, filed Jan 29, 2020, estimated cost $12K, described as “Herewith in filing for plumbing work associated with the general interior renovation of residential apartment filed separately through DOB hub. No change to use, egress, or occupancy.”
Property taxes
- Assessment
- $10,808,100
- 2026–27 tax
- $1,060,686
- Market value (city estimate)
- $24,018,000
- Taxable value
- $10,034,970
- Assessed land
- $1,602,000
- Assessed improvements
- $9,206,100
Tax breaks
- Co-op and condo abatement, with no end date, a $187,850 credit this tax year.
Zoning
R10A: floor area ratio 12.10 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
- Sep 25, 2026: $2,525,000
- Sep 14, 2026: $1,495,000
- Mar 4, 2026: $1,930,000
- Sep 30, 2024: $2,220,000
- Nov 15, 2023: $2,200,000
- Dec 19, 2022: $3,995,000
- Apr 26, 2022: $2,625,000
- Feb 17, 2022: $2,695,000
- Aug 3, 2021: $2,315,000
- Jul 30, 2021: $1,472,500
The 10 most recent of 18 open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Riverside-West End Historic District Extension I (Historic District). 50 Landmarks Preservation Commission permits are on file.