394 Monroe Street, Brooklyn
Four-family · built c. 1910 · Block 1820, Lot 30.
Building permits
- Alteration, filed May 27, 2026, estimated cost $60K, described as “Interior demolition on existing four (4) family,three(3) story residential building with basement and cellar.no change of building bulk,occupancy or egress.”
- Alteration, filed May 26, 2026, estimated cost $643K, described as “Alteration on existing 4 story with cellar,four(4) family into two(2) family d.u. As per plan show.obtain new c of o.”
Property taxes
- Assessment
- $350,100
- 2026–27 tax
- $10,924
- Market value (city estimate)
- $778,000
- Taxable value
- $87,817
- Assessed land
- $13,500
- Assessed improvements
- $336,600
Zoning
R6B: floor area ratio 1.47 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Feb 20, 2026: $1,380,000, 2,830 sq ft ($488 per sq ft)
- Jan 18, 2024: $1,424,500
Open-market sales since 2016, from the Department of Finance’s sales files.