809 Greene Avenue, Brooklyn
Two-family · built c. 1899 · Block 1615, Lot 77.
Building permits
- Alteration, filed Apr 10, 2026, estimated cost $342K, described as “Filing to Convert existing HCB (SRO) to HCA (4-family) under MDL Article 6.”
Property taxes
- Assessment
- $95,880
- 2026–27 tax
- $3,327
- Market value (city estimate)
- $1,598,000
- Taxable value
- $16,766
- Assessed land
- $20,820
- Assessed improvements
- $75,060
Zoning
R6B: floor area ratio 1.80 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.