# 371 Hawthorne Street, Brooklyn

Apartment building · 10 units · built c. 1899 · Block 4814, Lot 57.

On Umarelli: https://umarelli.org/nyc/3048140057/371-hawthorne-street

More construction in Prospect Lefferts Gardens: https://umarelli.org/nyc/brooklyn/prospect-lefferts-gardens.md

## Building permits

- Alteration, filed Jan 21, 2026, estimated cost $15K, described as “Filing for the installation of pump jack scaffolds.”
- Major Renovation — Conversion, filed Jun 22, 2023, estimated cost $1.9M, 6 units added, 4 stories, described as “Proposed conversion to an existing 2 story and cellar residential building. With horizontal and vertical enlargement existing 2 units proposed total of 8 residential units.”
- Alteration, filed Feb 7, 2022, estimated cost $178K, described as “Installation of fully sprinkler system as required per application. No change in use, occupancy & egress. Related alt 1 application B00803340-I1”
- Alteration, filed Dec 21, 2021, estimated cost $7K, described as “Foundation work as per plan”
- Alteration, filed Dec 21, 2021, estimated cost $13K, described as “Structural work as per plan”
- Alteration, filed Nov 24, 2021, estimated cost $250, described as “Installation of construction fence around the property.”

## Property taxes

- Assessment: $689,850
- 2026–27 tax: $10,184
- Market value (city estimate): $1,533,000
- Taxable value: $81,875
- Assessed land: $188,100
- Assessed improvements: $501,750

## Zoning

R6: floor area ratio 2.60 built, above the 2.43 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Jan 20, 2021: $950,000

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 371 Hawthorne Street in Prospect Lefferts Gardens, Brooklyn](https://newyorkyimby.com/2022/08/permits-filed-for-371-hawthorne-street-in-prospect-lefferts-gardens-brooklyn.html), New York YIMBY, Aug 11, 2022.

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