431 Union Street, Brooklyn
Apartment building · 3 units · built 1899 · Block 430, Lot 70.
Building permits
- Major Renovation — Residential, filed Aug 19, 2026, estimated cost $1.1M, 2 units, 4 stories
- Alteration — Multi-Family, filed Nov 15, 2025, estimated cost $10K, 3 units
- Alteration — Multi-Family, filed Aug 1, 2025, estimated cost $40K, 3 units, 3 stories
Property taxes
- Assessment
- $158,460
- Last year’s tax
- $7,167
- Land value
- $30,180
- Improvement value
- $128,280
Zoning
R6B: built 1.14 of 2.00 allowed floor area ratio.