833 Union Street, Brooklyn

Commercial · built c. 1921 · Block 954, Lot 55.

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Building permits

Permit records are unavailable right now; the map lists them once the city responds.

Property taxes

Assessment
$336,150
2026–27 tax
$21,923
Market value (city estimate)
$747,000
Taxable value
$202,095
Assessed land
$27,900
Assessed improvements
$308,250

Tax breaks

Zoning

R6A: floor area ratio 2.45 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 954

Umarelli: construction in New York City and Jersey City