421 13th Street, Brooklyn

Single family · built c. 1881 · Block 1098, Lot 60.

Building permits

Property taxes

Assessment
$140,100
2026–27 tax
$20,343
Market value (city estimate)
$2,335,000
Taxable value
$102,518
Assessed land
$25,080
Assessed improvements
$115,020

Zoning

R6B: floor area ratio 2.31 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.

Flood zone

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

Recent sales

Open-market sales since 2016, from the Department of Finance’s sales files.

Landmarks

Part of Park Slope Historic District Extension (Historic District). 9 Landmarks Preservation Commission permits are on file.

More construction in Park Slope

Every lot on block 1098

Umarelli: construction in New York City and Jersey City