# 544 Union Street, Brooklyn

Four-family with store · built c. 1931 · Block 440, Lot 27.

On Umarelli: https://umarelli.org/nyc/3004400027/544-union-street

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

## Building permits

- Alteration, filed Feb 18, 2026, described as “Construction Fence”
- Major Renovation — Conversion, filed Oct 1, 2025, estimated cost $3.3M, 6 units added, 5 stories, described as “Alteration CO application as-of-right conversion of existing 3 story mixed use building into a residential R-2 building with horizontal & vertical enlargement for 8 D.U.'s, 5 stories & Cellar. New egress stairs & building to be fully…”
- Alteration, filed Jun 21, 2023, estimated cost $1K, described as “Fence application to cover the demolition and new construction on block :440 and lot: 27. In conjunction job numbers: B00890457-I1, B00890451-I1”

## Property taxes

- Assessment: $356,400
- 2026–27 tax: $8,766
- Market value (city estimate): $792,000
- Taxable value: $70,469
- Assessed land: $290,250
- Assessed improvements: $66,150

## Zoning

M1-4/R6A: floor area ratio 1.93 built, 3.00 allowed by base zoning.

## Recent sales

- Jun 27, 2025: $5,000,000

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

## Flood zone

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

## 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…

## In the news

[Demolition Progresses For New Residential Building At 544-550 Union Street in Gowanus, Brooklyn](https://newyorkyimby.com/2026/07/demolition-progresses-for-new-residential-building-at-544-550-union-street-in-gowanus-brooklyn.html), New York YIMBY, Jul 27, 2026.

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