408 Monroe Street, Brooklyn
Two-family · built 2025 · Block 1820, Lot 139.
Building permits
- New Building — Residential, filed May 17, 2021, estimated cost $245K, 2 units, 4 stories, described as “Herewith to propose a 4 story 2 family new building, along with mechanical systems”
- Alteration, filed Jan 17, 2025, described as “Installation of temporary sidewalk shed as per plans. No change in use, egress or occupancy.”
- Alteration, filed Dec 19, 2024, estimated cost $5K, described as “Installation of sprinkler system for a 4-story 2 family building in conjunction with B00508976-I1.”
- Alteration, filed May 2, 2024, estimated cost $45K, described as “Herewith filing to install plumbing systems as per approved plans. In conjunction with DOB now #B00508976.”
Property taxes
- Assessment
- $95,760
- 2026–27 tax
- $15,832
- Market value (city estimate)
- $1,596,000
- Taxable value
- $79,784
- Assessed land
- $23,580
- Assessed improvements
- $72,180
Zoning
R6B: floor area ratio 2.00 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Aug 17, 2026: $3,350,000, 3,845 sq ft ($871 per sq ft)
- Jan 17, 2024: $800,000
- Feb 4, 2021: $700,000
Open-market sales since 2016, from the Department of Finance’s sales files.