# 143 9th Street, Brooklyn

Apartment building · 5 units · built c. 1931 · Block 1002, Lot 55.

On Umarelli: https://umarelli.org/nyc/3010020055/143-9-street

More construction in Gowanus: https://umarelli.org/nyc/brooklyn/gowanus.md

## Building permits

- Alteration, filed Oct 29, 2026, estimated cost $1K, described as “PMM application filed in conjunction to ALT - CO GC application: B01193391-I1 To install a pump jack as per plans”
- Alteration, filed May 5, 2026, estimated cost $1K, described as “Proposed installation of temporary pipe scaffold as per plans. Work shall comply with chapter #33 of 2022 the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Apr 11, 2026, estimated cost $1K, described as “Installation of temporary heavy duty sidewalk shed as per plans. No change in use, egress or occupancy. Sidewalk shed shall comply with chapter #33 of 2022 the NYC building code. Live load 300PSF.”
- Alteration, filed Apr 2, 2026, estimated cost $1K, described as “Proposed installation of temporary pipe scaffold as per plans. Work shall comply with chapter #33 of 2022 the NYC building code. No change in use, occupancy, or egress under this application.”
- Major Renovation — Conversion, filed Mar 19, 2025, estimated cost $1.0M, 1 unit added, 4 stories, described as “Proposed horizontal and vertical enlargement to an existing three (3) story residential use building; converting to a four (4) story + cellar residential use building.”
- Alteration, filed Feb 15, 2024, estimated cost $5K, described as “Installation of 300PSF sidewalk shed as per plans. Sidewalk shed shall comply with chapter # 33 of the NYC code 2022, no changes in use egress or occupancy under this application.”
- Alteration, filed Jan 30, 2024, estimated cost $76K, described as “Install Temporary Shoring and Weatherproofing of 3-Story wood frame building, damaged by fire in response to DOB issued Emergency Work Order. Control No. 343376.”
- Alteration, filed Dec 26, 2023, estimated cost $3K, described as “Install 8ft plywood fence at front yard”

## Property taxes

- Assessment: $170,100
- 2026–27 tax: $6,502
- Market value (city estimate): $378,000
- Taxable value: $52,270
- Assessed land: $110,700
- Assessed improvements: $59,400

## Zoning

M1-4/R6B: floor area ratio 1.13 built, 2.00 allowed by base zoning.

## Recent sales

- Sep 3, 2025: $1,500,000

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

## Flood zone

Current FEMA flood map: zone X, moderate risk: a 0.2% chance of flooding each year.

## Board and land use applications

- Ninth Street Rezoning (City Planning 2020K0358): Zoning map change, Zoning text change, Special permit, Completed, filed Mar 31, 2021, decided Mar 24, 2023. This is a private application by Angelina Gatto Trust for a proposed zoning map amendment from M2-1 to M1-4/R7A, a special permit pursuant to ZR 74-533 to waive required residential off-street parking, and a zoning text amendment to…

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