# 433 Carroll Street, Brooklyn

Two-family · built c. 1899 · Block 447, Lot 59.

On Umarelli: https://umarelli.org/nyc/3004470059/433-carroll-street

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

## Building permits

- Alteration, filed Jun 24, 2026, estimated cost $1K, described as “Install construction fence to enclose site”
- Demolition, filed Jun 22, 2026, estimated cost $246K, described as “HPD emergency demolition”
- Alteration, filed Nov 15, 2025, estimated cost $10K, described as “Installation of 300 psf sidewalk shed as per plans. All equipment shall comply with chapter #33 of the 2022 code. No change in use, egress or occupancy under this application.”
- Major Renovation — Residential, filed Aug 21, 2023, estimated cost $378K, 2 units in all, 4 stories, described as “Vertical/horizontal enlargement and interior renovations throughout.”
- Alteration, filed Aug 11, 2023, estimated cost $8K, described as “Foundation and structural work for a 4-story building with penthouse and a 2-family dwelling.”
- Alteration, filed Jul 11, 2023, estimated cost $4K, described as “Interior renovations for partial demolition to non-bearing walls”
- Alteration, filed Jul 11, 2023, estimated cost $3K, described as “Interior renovation for partial demolition of plumbing fixtures.”

## Property taxes

- Assessment: $71,520
- 2026–27 tax: $2,960
- Market value (city estimate): $1,192,000
- Taxable value: $14,916
- Assessed land: $16,200
- Assessed improvements: $55,320

## Zoning

M1-4/R6A: floor area ratio 1.00 built, 3.00 allowed by base zoning.

## Recent sales

- Mar 30, 2023: $1,300,000, 900 sq ft ($1,444 per sq ft)

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. FEMA’s preliminary map: zone AE, high risk: a 1% chance of flooding each year, base flood elevation 10 ft (NAVD88).

## Board and land use applications

- Gowanus Neighborhood Plan (City Planning 2018K0382): Zoning map change, Zoning text change, City map change, Urban development action area, Completed, decided Dec 6, 2021. The Gowanus Neighborhood Plan is a shared, long-term vision for a thriving neighborhood. It looks to identify strategies for an equitable, resilient and sustainable Gowanus, with more local jobs and housing. The Plan supports community…

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