310 5th Avenue, Brooklyn

Mixed use · 6 units · built c. 1921 · Block 974, Lot 38.

Building permits

Property taxes

Assessment
$1,041,300
2026–27 tax
$30,120
Market value (city estimate)
$2,314,000
Taxable value
$242,143
Assessed land
$15,300
Assessed improvements
$1,026,000

Zoning

R6A: floor area ratio 2.93 built, 3.00 allowed by base zoning.

Flood zone

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

More construction in Park Slope

Every lot on block 974

Umarelli: construction in New York City and Jersey City