5707 21st Avenue, Brooklyn

Two-family · built c. 1920 · Block 5501, Lot 6.

Building permits

No building permits on file for this lot.

Property taxes

Assessment
$157,740
2026–27 tax
$9,418
Market value (city estimate)
$2,629,000
Taxable value
$47,465
Assessed land
$23,100
Assessed improvements
$134,640

Zoning

R5: floor area ratio 0.78 built, 1.50 allowed by base zoning.

Flood zone

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

More construction in Borough Park

Every lot on block 5501

Umarelli: construction in New York City and Jersey City