548 Union Street, Brooklyn
Industrial · built 1910 · Block 440, Lot 29.
Building permits
- Alteration — Multi-Family, filed Sep 3, 2026, estimated cost $1K, 8 units, 5 stories
- Alteration, filed Mar 11, 2026, estimated cost $100
- Major Renovation — Multi-Family, filed Oct 1, 2025, estimated cost $3.3M, 8 units, 5 stories
Property taxes
- Assessment
- $248,850
- Last year’s tax
- $24,223
- Land value
- $32,400
- Improvement value
- $216,450
Zoning
M1-4/R6A: built 1.26 of 3.00 allowed floor area ratio.