# 866 Madison Street, Brooklyn

Industrial · built c. 1931 · Block 1483, Lot 13.

On Umarelli: https://umarelli.org/nyc/3014830013/866-madison-street

More construction in Ocean Hill: https://umarelli.org/nyc/brooklyn/ocean-hill.md

Every lot on block 1483: https://umarelli.org/nyc/brooklyn/1483.md

## Building permits

- Alteration, filed Nov 18, 2024, estimated cost $25K, described as “Proposed installation of new rooftop unit and ductwork in conjuction with job# B01120152-S1 as per plans. No change in use, egress or occupancy @ 866 madison street brooklyn, ny 11221.”
- Alteration, filed Sep 21, 2023, estimated cost $125K, described as “Concrete slab replacement at ground floor. No changes to the use, egress or occupancy is included in this project.”

## Property taxes

- Assessment: $268,200
- 2026–27 tax: $26,859
- Market value (city estimate): $596,000
- Taxable value: $247,590
- Assessed land: $40,500
- Assessed improvements: $227,700

## Zoning

R6B: floor area ratio 1.00 built, 2.00 allowed by base zoning.

## Recent sales

- Apr 21, 2023: $3,100,000

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