1667 Union Street, Brooklyn
Two-family · built c. 1901 · Block 1395, Lot 56.
Building permits
- Alteration, filed Aug 11, 2026, estimated cost $90K, described as “Application filing for minor renovation at bsmt and 1ST floor for existing two family home as per plan. No change of use, egress and occupancy under this application.”
Property taxes
- Assessment
- $114,240
- 2026–27 tax
- $7,772
- Market value (city estimate)
- $1,904,000
- Taxable value
- $39,167
- Assessed land
- $14,220
- Assessed improvements
- $100,020
Zoning
R4: floor area ratio 1.77 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.
Recent sales
- Jun 26, 2026: $1,100,000, 3,540 sq ft ($311 per sq ft)
Open-market sales since 2016, from the Department of Finance’s sales files.