1646 Union Street, Brooklyn
Apartment building · 23 units · built c. 1920 · Block 1401, Lot 39.
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Building permits
Permit records are unavailable right now; the map lists them once the city responds.
Property taxes
- Assessment
- $945,000
- 2026–27 tax
- $100,566
- Market value (city estimate)
- $2,100,000
- Taxable value
- $808,470
- Assessed land
- $39,600
- Assessed improvements
- $905,400
Zoning
R4: floor area ratio 3.03 built, above the 1.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.