# 623 Union Avenue, Brooklyn

Two-family · built c. 1910 · Block 2292, Lot 17.

On Umarelli: https://umarelli.org/nyc/3022920017/623-union-avenue

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

Every lot on block 2292: https://umarelli.org/nyc/brooklyn/2292.md

## Building permits

- Alteration, filed Jun 11, 2022, estimated cost $224K, described as “Vertical Extension”

## Property taxes

- Assessment: $157,980
- 2026–27 tax: $4,990
- Market value (city estimate): $2,633,000
- Taxable value: $25,148
- Assessed land: $17,940
- Assessed improvements: $140,040

## Zoning

M1-2/R6A: floor area ratio 1.35 built, 3.00 allowed by base zoning.

## Recent sales

- Apr 14, 2022: $999,000

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

## Flood zone

Current FEMA flood map: zone AE, high risk: a 1% chance of flooding each year, base flood elevation 10 ft (NGVD29). FEMA’s preliminary map: zone X, moderate risk: a 0.2% chance of flooding each year.

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