# 381 East 31st Street, Brooklyn

Three-family · built c. 1925 · Block 4948, Lot 54.

On Umarelli: https://umarelli.org/nyc/3049480054/381-east-31-street

More construction in Flatbush: https://umarelli.org/nyc/brooklyn/flatbush.md

## Building permits

- New Building — Multi-Family, filed Jul 15, 2026, 11 units, 4 stories, described as “Proposed new eleven (11)-family, four (4)-story with cellar and penthouse building. Obtain a certificate of occupancy.”
- Alteration, filed Aug 27, 2026, estimated cost $9K, described as “Installation of 300PSF sidewalk shed as per plans. All equipment shall comply with ch #33 of the NYC code 2022. No change in use, occupancy or egress under this application.”
- Alteration, filed Jun 15, 2026, estimated cost $17K, described as “Overhead protection as per plans. No change in use occupancy or egress under this application. Overhead protection shall comply with chapter 33 of the 2022 NYC building code.”
- Demolition, filed Apr 3, 2026, estimated cost $15K, described as “Handheld Full demolition of an existing one-story Garage building accessory to three-family dwelling.”
- Demolition, filed Nov 26, 2025, estimated cost $40K, described as “Handheld full demolition of an existing 3-Story, 3-family building.”
- Alteration, filed Nov 26, 2025, estimated cost $5K, described as “Installation of temporary construction fence in conjunction w/fd applications & NB applications to be filed. Fence shall comply w/chapter 33 of the NYC building code. No change in use, egress or occupancy under this application.”

## Property taxes

- Assessment: $50,460
- 2026–27 tax: $7,209
- Market value (city estimate): $841,000
- Taxable value: $36,331
- Assessed land: $20,820
- Assessed improvements: $29,640

## Zoning

R6: floor area ratio 0.53 built, 2.43 allowed by base zoning.

## Recent sales

- Nov 7, 2025: $999,000

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

## Flood zone

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

## In the news

[Permits Filed for 381 East 31st Street in East Flatbush, Brooklyn](https://newyorkyimby.com/2026/07/permits-filed-for-381-east-31st-street-in-east-flatbush-brooklyn.html), New York YIMBY, Jul 21, 2026.

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