100 Union Avenue, Brooklyn
Vacant land · Block 2242, Lot 3.
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Building permits
Permit records are unavailable right now; the map lists them once the city responds.
Property taxes
- Assessment
- $1,039,950
- 2026–27 tax
- $93,063
- Market value (city estimate)
- $2,311,000
- Taxable value
- $857,880
- Assessed land
- $1,039,950
Zoning
R6A: floor area ratio 0.00 built, 3.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Oct 7, 2016: $10,500,000
Open-market sales since 2016, from the Department of Finance’s sales files.