# 248 20th Street, Brooklyn

Three-family · built c. 1899 · Block 891, Lot 12.

On Umarelli: https://umarelli.org/nyc/3008910012/248-20-street

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

## Building permits

- Alteration, filed Jun 1, 2026, estimated cost $50K, described as “File supported scaffold in conjunction with alt-co NB job #: B01213386-I1.”
- Alteration, filed Apr 1, 2026, estimated cost $20K, described as “Filed a needle beam on 3RD floor in conjunction with alt-co NB job #: B01213386-I1.”
- Alteration, filed Feb 24, 2026, estimated cost $50K, described as “File sidewalk shed in conjunction with alt-co NB job #: B01213386-I1.”
- Alteration, filed Aug 28, 2025, estimated cost $3K, described as “Fence as shown on plans in conjunction with ALT CO application #: B01213386-I1 and subsequent filings.”
- Major Renovation — Enlargement, filed Apr 25, 2025, estimated cost $1.9M, 1 unit added, 6 stories, described as “Vertical and horizontal enlargement of an existing 3 floor, 3 dwelling unit residential building, occupancy increased to 4 dwelling units. building heigh increased to 6 floors.”

## Property taxes

- Assessment: $184,680
- 2026–27 tax: $6,167
- Market value (city estimate): $3,078,000
- Taxable value: $41,347
- Assessed land: $18,240
- Assessed improvements: $166,440

## Tax breaks

- Solar abatement, through Jun 30, 2027, a $2,038 credit this tax year.

## Zoning

R6A: floor area ratio 1.48 built, 3.00 allowed by base zoning.

## Recent sales

- Dec 16, 2024: $2,365,000

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