473 Union Street, Brooklyn
Two-family · built c. 1899 · Block 430, Lot 48.
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Building permits
Permit records are unavailable right now; the map lists them once the city responds.
Property taxes
- Assessment
- $214,320
- 2026–27 tax
- $12,018
- Market value (city estimate)
- $3,572,000
- Taxable value
- $60,564
- Assessed land
- $51,180
- Assessed improvements
- $163,140
Zoning
R6B: floor area ratio 2.00 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard. FEMA’s preliminary map: zone X, moderate risk: a 0.2% chance of flooding each year.
Recent sales
- May 19, 2022: $1,900,000
Open-market sales since 2016, from the Department of Finance’s sales files.