851 Willoughby Avenue, Brooklyn
Two-family · built c. 1910 · Block 1590, Lot 28.
Building permits
- Alteration, filed Jul 31, 2026, estimated cost $8K, described as “Proposing to repair the rear-yard fire escape to correct the conditions cited in vacate order complaint 3A37714. No change in use, egress, or occupancy is proposed.”
Property taxes
- Assessment
- $75,540
- 2026–27 tax
- $3,105
- Market value (city estimate)
- $1,259,000
- Taxable value
- $15,647
- Assessed land
- $18,540
- Assessed improvements
- $57,000
Zoning
C4-4L: floor area ratio 1.59 built, 4.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.