391 Putnam Avenue, Brooklyn
Three-family · built c. 1915 · Block 1824, Lot 62.
Building permits
- Alteration, filed Aug 7, 2026, estimated cost $550K, described as “Renovation of an existing three-family dwelling, including conversion to a two-family dwelling.”
- Alteration, filed Aug 7, 2026, estimated cost $65K, described as “Installation of mechanical systems”
- Alteration, filed Aug 7, 2026, estimated cost $47K, described as “Installation of sprinkler systems”
- Alteration, filed Aug 7, 2026, estimated cost $44K, described as “Installation of plumbing fixtures”
Property taxes
- Assessment
- $122,160
- 2026–27 tax
- $4,214
- Market value (city estimate)
- $2,036,000
- Taxable value
- $21,238
- Assessed land
- $15,000
- Assessed improvements
- $107,160
Zoning
R6B: floor area ratio 1.52 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Sep 24, 2019: $254,667
Open-market sales since 2016, from the Department of Finance’s sales files.