# 411 12th Street, Brooklyn

Three-family · built c. 1886 · Block 1096, Lot 69.

On Umarelli: https://umarelli.org/nyc/3010960069/411-12-street

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

Every lot on block 1096: https://umarelli.org/nyc/brooklyn/1096.md

## Building permits

- Alteration, filed Feb 6, 2026, estimated cost $691K, described as “Interior and exterior architectural work to convert a three-family row house into a single-family residence. Obtain a new Certificate of Occupancy.”

## Property taxes

- Assessment: $184,800
- 2026–27 tax: $7,047
- Market value (city estimate): $3,080,000
- Taxable value: $35,512
- Assessed land: $24,060
- Assessed improvements: $160,740

## Zoning

R6A: floor area ratio 2.09 built, 3.00 allowed by base zoning.

## Recent sales

- Aug 21, 2025: $2,500,000

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

## Flood zone

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

## Landmarks

Part of Park Slope Historic District Extension (Historic District). 2 Landmarks Preservation Commission permits are on file.

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