# 223 South 4th Street, Brooklyn

Two-family · built c. 1899 · Block 2433, Lot 37.

On Umarelli: https://umarelli.org/nyc/3024330037/223-south-4-street

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

## Building permits

- Major Renovation — Enlargement, filed Nov 4, 2026, estimated cost $673K, 4 units added, 4 stories, described as “Herewith to propose horizontal and vertical enlargement of an existing 3-story, 2 family building to a 4-story, 6 family dwelling with cellar,stair bulkhead and community facility use at the first floor. New certificate of occupancy to be…”

## Property taxes

- Assessment: $139,740
- 2026–27 tax: $3,882
- Market value (city estimate): $2,329,000
- Taxable value: $19,561
- Assessed land: $18,960
- Assessed improvements: $120,780

## Zoning

R6: floor area ratio 1.26 built, 2.43 allowed by base zoning.

## Recent sales

- Jul 20, 2026: $1,950,000, 2,400 sq ft ($813 per sq ft)

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