# 145 23rd Street, Brooklyn

Single family · built c. 1899 · Block 645, Lot 59.

Some of the city’s records for this lot were still loading when this page was made; it refreshes within minutes.

On Umarelli: https://umarelli.org/nyc/3006450059/145-23-street

More construction in Sunset Park: https://umarelli.org/nyc/brooklyn/sunset-park.md

Every lot on block 645: https://umarelli.org/nyc/brooklyn/645.md

## Building permits

Permit records are unavailable right now; the map lists them once the city responds.

## Property taxes

- Assessment: $52,140
- 2026–27 tax: $2,303
- Market value (city estimate): $869,000
- Taxable value: $11,606
- Assessed land: $15,960
- Assessed improvements: $36,180

## Zoning

M1-2D: floor area ratio 0.29 built, 2.00 allowed by base zoning.

## 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