# 23 Adelphi Street, Brooklyn

Apartment building · 8 units · built c. 1915 · Block 2032, Lot 13.

On Umarelli: https://umarelli.org/nyc/3020320013/23-adelphi-street

More construction in Brooklyn Navy Yard: https://umarelli.org/nyc/brooklyn/brooklyn-navy-yard.md

Every lot on block 2032: https://umarelli.org/nyc/brooklyn/2032.md

## Building permits

- Alteration, filed Mar 29, 2021, estimated cost $5K, described as “Amend plumbing riser diagrams on plan P-001 to show that new piping is provided only for the new bathroom. All other water and gas piping was existing.”

## Property taxes

- Assessment: $841,500
- 2026–27 tax: $17,746
- Market value (city estimate): $1,870,000
- Taxable value: $142,665
- Assessed land: $45,000
- Assessed improvements: $796,500

## Zoning

M1-2: floor area ratio 2.20 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Mar 9, 2023: $2,500,000

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

## Flood zone

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

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