187 Guernsey Street, Brooklyn
Two-family · built c. 1905 · Block 2594, Lot 27.
Building permits
- Major Renovation — Residential, filed Jul 22, 2026, estimated cost $2.2M, 2 units in all, 4 stories, described as “Proposed vertical and horizontal extension on existing 2 story 2 dwelling unit building (total 4 story building)”
Property taxes
- Assessment
- $283,560
- 2026–27 tax
- $5,671
- Market value (city estimate)
- $4,726,000
- Taxable value
- $27,768
- Assessed land
- $20,940
- Assessed improvements
- $262,620
Zoning
R6B: floor area ratio 1.70 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.