371 Hawthorne Street, Brooklyn
Apartment building · 10 units · built c. 1899 · Block 4814, Lot 57.
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.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jan 20, 2021: $950,000
Open-market sales since 2016, from the Department of Finance’s sales files.
In the news
Permits Filed for 371 Hawthorne Street in Prospect Lefferts Gardens, Brooklyn, New York YIMBY, Aug 11, 2022.