# 433 Sackett Street, Brooklyn

Apartment building · 22 units · built c. 1915 · Block 423, Lot 65.

On Umarelli: https://umarelli.org/nyc/3004230065/433-sackett-street

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

## Building permits

- Alteration, filed Sep 29, 2026, estimated cost $7K, described as “Proposed installation of heavy duty sidewalk shed as per plans. Live load 300 lbs per square feet. Sidewalk shed shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Oct 30, 2025, described as “Installation of temporary engineered enclosure system as per plans. No change in use, egress or occupancy.”
- Alteration, filed Oct 2, 2025, described as “Installation of temporary pipe & system scaffold as per plans. No change in use, egress or occupancy.”
- Alteration, filed Oct 2, 2025, described as “Installation of temporary sidewalk shed as per plans. No change in use, egress or occupancy.”
- Alteration, filed Dec 30, 2024, described as “Filling for installation of engineered enclosure system per 3309.17”
- Major Renovation — Conversion, filed Sep 11, 2024, estimated cost $1.4M, 22 units added, 4 stories, described as “Proposed conversion of an existing community facility (parish house) into the residential use subject to Article 1 Chapter 5 NYC ZR. removal or an existing mezzanine level and replacement of it with 2nd and 3rd floors withing existing 1st…”

## Property taxes

- Assessment: $829,350
- 2026–27 tax: $99,871
- Market value (city estimate): $1,843,000
- Taxable value: $802,887
- Assessed land: $211,950
- Assessed improvements: $617,400

## Zoning

R6B: floor area ratio 2.75 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Flood zone

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

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