150 Monroe Street, Brooklyn
Three-family · built c. 1899 · Block 1817, Lot 19.
Building permits
- Alteration, filed Dec 30, 2025, estimated cost $35K, described as “Installation of new sprinkler system as per plans attached herewith. No change in use, egress and occupancy.”
- Alteration, filed Oct 31, 2025, estimated cost $340K, described as “Job filed to show horizontal enlargement and interior renovation to a three families house as per plans filed herewith. New c of o required.”
- Alteration, filed Mar 28, 2025, estimated cost $29K, described as “Interior demolition of exist 3 fam building cell, basement, 1st 2nd and 3rd floor to include removal of fit outs and non-load bearing partitions as per plans attached herewith. No change in use, egress and occupancy.”
Property taxes
- Assessment
- $127,260
- 2026–27 tax
- $5,525
- Market value (city estimate)
- $2,121,000
- Taxable value
- $27,844
- Assessed land
- $15,060
- Assessed improvements
- $112,200
Zoning
R6B: floor area ratio 1.82 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Feb 11, 2025: $1,800,000
Open-market sales since 2016, from the Department of Finance’s sales files.