666 West End Avenue, Manhattan

Apartment hotel · built c. 1927 · Block 1240, Lot 1.

Building permits

Property taxes

Assessment
$14,876,550
2026–27 tax
$1,448,830
Market value (city estimate)
$33,059,000
Taxable value
$13,355,730
Assessed land
$3,611,250
Assessed improvements
$11,265,300

Zoning

R10A (part of the lot is R8): floor area ratio 17.40 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 (Historic District). 50 Landmarks Preservation Commission permits are on file.

More construction in Upper West Side

Every lot on block 1240

Umarelli: construction in New York City and Jersey City