# 646 9th Avenue, Manhattan

Co-op · 15 units · built c. 1900 · Block 1036, Lot 3.

On Umarelli: https://umarelli.org/nyc/1010360003/646-9-avenue

More construction in Midtown West: https://umarelli.org/nyc/manhattan/midtown-west.md

Every lot on block 1036: https://umarelli.org/nyc/manhattan/1036.md

## Building permits

- Alteration, filed Sep 19, 2018, estimated cost $5K, described as “Erect an illuminated sign on wall.not within view of arterial highway or public park 1/2 acre or more. No change in use, egress or occupancy.”

## Property taxes

- Assessment: $868,950
- 2026–27 tax: $19,111
- Market value (city estimate): $1,931,000
- Taxable value: $150,863
- Assessed land: $77,850
- Assessed improvements: $791,100

## Tax breaks

- J-51 exemption, through Jun 30, 2037, about $87,683 a year below the full tax.

## Zoning

R8: floor area ratio 3.64 built, 6.02 allowed by base zoning.

## Recent sales

- Jul 14, 2026: $500,000
- May 21, 2026: $251,133
- Oct 3, 2023: $435,000
- Jan 13, 2023: $785,000
- Apr 22, 2020: $405,000, Apt 3RS
- Sep 18, 2018: $590,000
- Sep 26, 2017: $201,000
- May 13, 2016: $367,500

Open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

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

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