311 West 91st Street, Manhattan

Three-family · built c. 1897 · Block 1251, Lot 49.

Building permits

Property taxes

Assessment
$487,274
2026–27 tax
$56,454
Market value (city estimate)
$8,121,240
Taxable value
$284,502
Assessed land
$269,460
Assessed improvements
$217,814

Zoning

R8: floor area ratio 3.14 built, 6.02 allowed by base zoning.

Flood zone

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

Recent sales

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

Landmarks

Part of Riverside-West End Historic District (Historic District). 4 Landmarks Preservation Commission permits are on file.

More construction in Upper West Side

Every lot on block 1251

Umarelli: construction in New York City and Jersey City