666 Carroll Street, Brooklyn
Three-family · built c. 1899 · Block 962, Lot 21.
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Building permits
Permit records are unavailable right now; the map lists them once the city responds.
Property taxes
- Assessment
- $293,280
- 2026–27 tax
- $10,128
- Market value (city estimate)
- $4,888,000
- Taxable value
- $51,042
- Assessed land
- $43,860
- Assessed improvements
- $249,420
Zoning
R6B: floor area ratio 1.71 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Dec 17, 2025: $1,900,000
Open-market sales since 2016, from the Department of Finance’s sales files.