# 390 Union Avenue, Brooklyn

Three-family · built c. 1899 · Block 2773, Lot 6.

On Umarelli: https://umarelli.org/nyc/3027730006/390-union-avenue

More construction in East Williamsburg: https://umarelli.org/nyc/brooklyn/east-williamsburg.md

## Building permits

- Alteration, filed Jun 24, 2026, estimated cost $5K, described as “Installation of 300 psf sidewalk shed as per plans. All equipment shall comply with chapter #33 of the 2022 code. No change in use, egress or occupancy under this application.”
- Major Renovation — Enlargement, filed May 16, 2025, estimated cost $1.5M, 6 units added, 4 stories, described as “Proposed vertical & horizontal enlargement and interior renovations to existing 3-story and cellar residential building, proposed addition of one story and penthouse, total of 9 units.”

## Property taxes

- Assessment: $125,760
- 2026–27 tax: $5,689
- Market value (city estimate): $2,096,000
- Taxable value: $28,672
- Assessed land: $24,960
- Assessed improvements: $100,800

## Zoning

R7A: floor area ratio 1.15 built, 4.00 allowed by base zoning.

## Recent sales

- Apr 28, 2025: $2,450,000
- Aug 9, 2017: $2,399,888

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