# 155 Clarkson Avenue, Brooklyn

Apartment building · 34 units · built 2023 · Block 5056, Lot 77.

On Umarelli: https://umarelli.org/nyc/3050560077/155-clarkson-avenue

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

## Building permits

- New Building — Multi-Family, filed Jun 8, 2022, estimated cost $11.0M, 34 units, 7 stories, described as “This is a post amendment approval to reflect as built conditions.”
- Alteration, filed Mar 26, 2025, estimated cost $4K, described as “Herewith is a filing to replace the existing 11'-0" curb cut for a new building.”
- Alteration, filed Sep 10, 2024, estimated cost $9K, described as “Installation of pipe scaffolding 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 Apr 24, 2024, 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 May 17, 2022, estimated cost $400K, described as “Plumbing and Sprinkler application in response to New Building Application #B00683408. Revised gas riser diagram by adding separate gas meter for domestic hot water heater and make up unit, and separate meter for dryers. There shall be 36…”
- Alteration, filed May 17, 2022, estimated cost $400K, described as “Proposed HVAC works to provide heating, ventilation, and air conditioning to the facility.”
- Alteration, filed Apr 27, 2022, estimated cost $75K, described as “Herewith filing to raise the cellar slab to eliminate 75% of the underpinning as per drawings.”
- Alteration, filed Apr 21, 2022, estimated cost $20K, described as “Herewith is the filing to raise the cellar slab and change soldier piles as per drawings.”
- Alteration, filed Apr 13, 2022, estimated cost $11.8M, described as “Herewith is a filing for the foundation and structure of a new seven-story building.”
- Alteration, filed Apr 6, 2022, estimated cost $8K, described as “Herewith is filing for a temporary plywood construction fence in the front perimeter property.”

## Property taxes

- Assessment: $2,629,800
- 2026–27 tax: $270,947
- Market value (city estimate): $5,844,000
- Taxable value: $2,178,205
- Assessed land: $817,200
- Assessed improvements: $1,812,600

## Zoning

R7-1: floor area ratio 4.97 built, above the 3.44 base zoning allows, which bonuses, transfers or older rules can permit.

## Flood zone

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

## In the news

[Permits Filed for 155 Clarkson Avenue in Prospect Lefferts Gardens, Brooklyn](https://newyorkyimby.com/2022/06/permits-filed-for-155-clarkson-avenue-in-prospect-lefferts-gardens-brooklyn.html), New York YIMBY, Jun 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