307 Grand Avenue, Brooklyn
Condominium · 3 units · built c. 1910 · Block 1966, Lot 7501.
Building permits
- Alteration, filed Mar 22, 2022, estimated cost $2K, described as “Filing for the conversion of unoccupied rooftop to accessory roof for passive recreation, no change to use egress or occupancy.”
Property taxes
- Assessment
- $266,579
- 2026–27 tax
- $19,647
- Market value (city estimate)
- $4,442,999
- Taxable value
- $99,012
- Assessed land
- $5,999
- Assessed improvements
- $260,580
- Condo units with their own tax lots
- 3
Zoning
R6B: floor area ratio 1.82 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jun 25, 2019: $995,000, Apt 2
Open-market sales since 2016, from the Department of Finance’s sales files.