# 643 Union Street, Brooklyn

Parking · Block 434, Lot 52.

On Umarelli: https://umarelli.org/nyc/3004340052/643-union-street

More construction in Gowanus: https://umarelli.org/nyc/brooklyn/gowanus.md

## Building permits

- New Building — Multi-Family, filed Mar 10, 2022, estimated cost $2.5M, 22 units, 8 stories, described as “'accepted to development hub - consultation meeting took place 3/3/22': proposed new 8 story mix use commercial & residential building + cellar (commercial on the 1ST floor)”
- Alteration, filed May 23, 2022, estimated cost $10K, described as “Application filed for the installation of a footing element as per drawings. All work in conjunction with the new building under job #B00691141-I1”
- Alteration, filed May 11, 2022, estimated cost $5K, described as “Proposed temporary construction fence associated with new building application #B00691141”

## Property taxes

- Assessment: $352,350
- 2026–27 tax: $24,193
- Market value (city estimate): $783,000
- Taxable value: $223,020
- Assessed land: $352,350

## Zoning

M1-4/R7A: floor area ratio 0.00 built, 4.00 allowed by base zoning.

## Flood zone

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

## Board and land use applications

- Gowanus Neighborhood Plan (City Planning 2018K0382): Zoning map change, Zoning text change, City map change, Urban development action area, Completed, decided Dec 6, 2021. The Gowanus Neighborhood Plan is a shared, long-term vision for a thriving neighborhood. It looks to identify strategies for an equitable, resilient and sustainable Gowanus, with more local jobs and housing. The Plan supports community…

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