# 1833 East 21st Street, Brooklyn

Two-family · built c. 1920 · Block 6804, Lot 78.

On Umarelli: https://umarelli.org/nyc/3068040078/1833-east-21-street

More construction in Madison: https://umarelli.org/nyc/brooklyn/madison.md

## Building permits

- New Building — Residential, filed Oct 24, 2024, 1 unit, 2 stories, described as “Application filed herewith for a new 2 1/2 story, 1-family building.”
- Demolition, filed Aug 8, 2024
- Alteration, filed Jun 17, 2024, estimated cost $14K, described as “Stabilization of Partially Complete Foundation Excavation and Foundation Wall and Footing Construction”
- Demolition, filed Jun 17, 2024
- Alteration, filed Mar 27, 2024, estimated cost $82K, described as “Interior renovation to cellar, first,second, and attic floors of existing 2 1/2 story and one (1) dwelling unitbuilding, with replacement of roof shingles, plywood and rafters asrequired and replacement of facade.no change in use, egress…”
- Alteration, filed Feb 6, 2024, estimated cost $1K, described as “Filing for propose fence application.”

## Property taxes

- Assessment: $33,000
- 2026–27 tax: $6,548
- Market value (city estimate): $550,000
- Taxable value: $33,000
- Assessed land: $23,160
- Assessed improvements: $9,840

## Zoning

R3-2: floor area ratio 0.75 built, 0.75 allowed by base zoning.

## Recent sales

- Nov 16, 2023: $1,650,000

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