420 West End Avenue, Manhattan

Apartment building · 38 units · built c. 1916 · Block 1228, Lot 1.

Building permits

Property taxes

Assessment
$5,106,150
2026–27 tax
$586,522
Market value (city estimate)
$11,347,000
Taxable value
$4,715,190
Assessed land
$693,000
Assessed improvements
$4,413,150

Zoning

R10A: floor area ratio 11.14 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.

Landmarks

Part of Riverside-West End Historic District Extension I (Historic District). 13 Landmarks Preservation Commission permits are on file.

More construction in Upper West Side

Every lot on block 1228

Umarelli: construction in New York City and Jersey City