313 Troy Avenue, Brooklyn
Two-family · built c. 1901 · Block 1401, Lot 8.
Building permits
- Alteration, filed Oct 21, 2025, estimated cost $47K, described as “Installation of solar panels on existing roof. No change in use, occupancy, or egress. No change in bulk”
- Alteration, filed Apr 10, 2024, estimated cost $154K, described as “Interior renovation of 2 story with basement building”
- Alteration, filed Apr 10, 2024, estimated cost $4K, described as “Plumbing work for existing two family building”
- Alteration, filed Apr 8, 2024, estimated cost $187K, described as “Interior renovation of 2 story with basement building”
Property taxes
- Assessment
- $94,500
- 2026–27 tax
- $4,325
- Market value (city estimate)
- $1,575,000
- Taxable value
- $21,796
- Assessed land
- $21,000
- Assessed improvements
- $73,500
Zoning
R4: floor area ratio 1.68 built, above the 1.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jun 16, 2025: $2,285,000
- Apr 1, 2024: $1,275,000
- Dec 20, 2023: $425,000
Open-market sales since 2016, from the Department of Finance’s sales files.