# 48 Bay 20th Street, Brooklyn

Three-family · built 2025 · Block 6370, Lot 75.

On Umarelli: https://umarelli.org/nyc/3063700075/48-bay-20-street

More construction in Bath Beach: https://umarelli.org/nyc/brooklyn/bath-beach.md

## Building permits

- New Building — Multi-Family, filed Aug 22, 2022, estimated cost $105K, 3 units, 3 stories, described as “New 3 story residential building with cellar and penthouse. Obtain new c of o.”
- Alteration, filed Mar 27, 2025, estimated cost $72K, described as “To file sp worktype in conjunction with NB application # B00750665.”
- Alteration, filed Nov 13, 2024, estimated cost $35K, described as “To file pl worktype in conjution with NB application # B00750665.”
- Alteration, filed Mar 23, 2024, estimated cost $3K, described as “Installation of a temporarily heavy-duty sidewalk shed per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed May 9, 2023, described as “Filing structural plans in conjunction with job #B00750665-I1.”
- Alteration, filed May 8, 2023, described as “Filing SOE plans in conjunction with job #B00750665-I1.”
- Alteration, filed May 8, 2023, described as “Filing foundation plans in conjunction with job #B00750665-I1.”
- Alteration, filed Apr 24, 2023, estimated cost $5K, described as “To file eq fence permit in conjunction with new building job #B00793903. No change in use, egress or occupancy under this application.”

## Property taxes

- Assessment: $13,320
- 2026–27 tax: $2,643
- Market value (city estimate): $222,000
- Taxable value: $13,320
- Assessed land: $13,320

## Zoning

R5: floor area ratio 1.71 built, above the 1.50 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Mar 29, 2022: $1,400,000

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