# 303 Humboldt Street, Brooklyn

Single family · built c. 1910 · Block 2783, Lot 22.

On Umarelli: https://umarelli.org/nyc/3027830022/303-humboldt-street

More construction in East Williamsburg: https://umarelli.org/nyc/brooklyn/east-williamsburg.md

## Building permits

- Alteration, filed Sep 9, 2025, estimated cost $5K, described as “Installation of heavy-duty sidewalk shed as per plans. No change in use occupancy or egress under this application. Sidewalk shed shall comply with chapter 33 of the 2022 NYC building code.”
- Major Renovation — Residential, filed Aug 9, 2024, estimated cost $233K, 1 unit in all, 3 stories, described as “Change of use for existing basement doctors office (use group:vii ) to one dwelling (use group: ii), and interior renovations throughout.”

## Property taxes

- Assessment: $125,820
- 2026–27 tax: $4,436
- Market value (city estimate): $2,097,000
- Taxable value: $22,356
- Assessed land: $15,660
- Assessed improvements: $110,160

## Zoning

R6B: floor area ratio 1.47 built, 2.00 allowed by base zoning.

## Recent sales

- Jan 9, 2026: $3,415,000, 2,038 sq ft ($1,676 per sq ft)
- Jul 23, 2024: $1,630,000

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

## 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