# 666 Carroll Street, Brooklyn

Three-family · built c. 1899 · Block 962, Lot 21.

On Umarelli: https://umarelli.org/nyc/3009620021/666-carroll-street

More construction in Park Slope: https://umarelli.org/nyc/brooklyn/park-slope.md

Every lot on block 962: https://umarelli.org/nyc/brooklyn/962.md

## Building permits

- Alteration, filed Sep 7, 2022, estimated cost $16K, described as “No change to occupancy, use or egress. Relocate existing kitchen gas range and riser to 1st fl. Change tub to shower in existing 3 fixture bath. Add new laundry room w/ stacking clothes washer with gas clothes dryer. Add new 3 fixture bath…”
- Alteration, filed Sep 7, 2022, estimated cost $79K, described as “Relocate exg kitchen to 1st fl. Extend exg hall to exg rear bedroom.change tub to shower in exg 3 fixture bath. Add new laundry room w/ stacking washer/dryer. Add new 3 fixture bath. No change to occupancy, use or egress.”

## 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.

## Recent sales

- Dec 17, 2025: $1,900,000

Open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard.

From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology