# 585 Union Street, Brooklyn

Apartment building · 214 units · built 2023 · Block 433, Lot 28.

On Umarelli: https://umarelli.org/nyc/3004330028/240-3-avenue

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

## Building permits

- New Building — Large Residential, filed Nov 16, 2021, 224 units, 9 stories, described as “Application to be assigned to HUB per Consultation meeting with SPV on 9/28/2021, 25% inclusionary housing. Application filed in order to erect 9 story mixed use new building.”
- Alteration, filed May 26, 2026, estimated cost $22K, described as “Filing to install first floor Cafe store kitchen hood, make up air and ductwork as per plans. No change in use, egress or occupancy.”
- Alteration, filed Apr 29, 2026, estimated cost $130K, described as “1ST floor interior renovation. No change in use, occupancy, or egress under this application.”
- Alteration, filed Oct 22, 2025, estimated cost $227K, described as “Partition work at ground floor commercial space. No change to use, egress or occupancy. Prior designation of ug 6 to remain, alteration-co not required per bb 2025-002 and ac 28-118.3 exception.”
- Alteration, filed Sep 23, 2024, described as “Floor numbers updated, 1ST floor is now 2ND floor and 7TH is now 10TH floor”
- Alteration, filed Aug 3, 2023, estimated cost $6K, described as “Installation of temporary personnel material hoist as per plans. No change in use, egress oroccupancy.”
- Alteration, filed Jul 27, 2023, described as “Installation of temporary pipe scaffold as per plans. No change in use, egress or occupancy.”
- Alteration, filed Jul 17, 2023, estimated cost $4K, described as “Installation of temporary overhead protection as per plans. No change in use, egress or occupancy.”
- Alteration, filed Jul 17, 2023, estimated cost $6K, described as “Installation of temporary needle beam as per plans. No change in use, egress or occupancy.”
- Alteration, filed Jul 6, 2023, estimated cost $4K, described as “Installation of temporary roof protection as per plans. No change in use, egress or occupancy.”
- Alteration, filed Feb 7, 2022, described as “Installation of temporary sidewalk shed as per plans. No change in use, egress or occupancy.”
- Alteration, filed Feb 1, 2022, described as “Installation of temporary pipe scaffold as per plans. No change in use, egress or occupancy.”
- Alteration, filed Feb 1, 2022, described as “Installation of temporary sidewalk shed as per plans. No change in use, egress or occupancy.”
- Alteration, filed Dec 17, 2021, estimated cost $5K, described as “Installation of construction fence to protect site, during full demolition of 577 & 585 Union St, under DM application job #s322095923/322095656, both structures are under the same lot.”

## Property taxes

- Assessment: $30,673,800
- 2026–27 tax: $193,646
- Market value (city estimate): $68,164,000
- Taxable value: $1,556,764
- Assessed land: $860,400
- Assessed improvements: $29,813,400

## Tax breaks

- 421-a exemption, through Jun 30, 2060, about $3,590,858 a year below the full tax.

## Zoning

M1-4/R7A: floor area ratio 7.34 built, above the 4.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Oct 17, 2019: $32,681,500

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

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard. FEMA’s preliminary map: zone X, moderate risk: a 0.2% chance of flooding each year.

## 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

[Union Channel Completes Construction at 240 Third Avenue in Gowanus, Brooklyn](https://newyorkyimby.com/2025/06/union-channel-completes-construction-at-240-third-avenue-in-gowanus-brooklyn.html), New York YIMBY, Jun 24, 2025.

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