421 Autumn Avenue, Brooklyn
Two-family · built 1910 · Block 4180, Lot 18.
Building permits
- New Building — Multi-Family, filed Jul 22, 2026, 5 units, 3 stories
- Major Renovation — Residential, filed Jan 19, 2026, estimated cost $1K, 2 units, 2 stories
Property taxes
- Assessment
- $71,280
- Last year’s tax
- $8,520
- Land value
- $28,920
- Improvement value
- $42,360
Zoning
R5: built 0.34 of 2.00 allowed floor area ratio.