305 West 21st Street, Manhattan

Mixed use · 4 units · built c. 1910 · Block 745, Lot 30.

Building permits

Property taxes

Assessment
$820,350
2026–27 tax
$72,531
Market value (city estimate)
$1,823,000
Taxable value
$668,610
Assessed land
$123,300
Assessed improvements
$697,050

Zoning

R7B: floor area ratio 3.37 built, above the 3.00 base zoning allows, which bonuses, transfers or older rules can permit.

Flood zone

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

More construction in Chelsea

Every lot on block 745

Umarelli: construction in New York City and Jersey City