666 Union Street, Brooklyn
Two-family · built c. 1901 · Block 955, Lot 31.
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Building permits
- Alteration, filed Mar 16, 2020, estimated cost $25K, described as “Modification of plumbing fixtures on floors cellar, 1ST & 2ND as per plans filed herewith. No change in use, egress or occupancy.”
Property taxes
- Assessment
- $154,440
- 2026–27 tax
- $6,977
- Assessed land
- $22,680
- Assessed improvements
- $131,760
Zoning
R6A: floor area ratio 1.00 built, 3.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.