# 511 West End Avenue, Manhattan

Co-op · 62 units · built c. 1926 · Block 1246, Lot 36.

On Umarelli: https://umarelli.org/nyc/1012460036/511-west-end-avenue

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

Every lot on block 1246: https://umarelli.org/nyc/manhattan/1246.md

## 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.

## 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.

## Flood zone

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

## Landmarks

Part of Riverside-West End Historic District Extension I (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