# 645 Dekalb Avenue, Brooklyn

Two-family with store · built c. 1931 · Block 1774, Lot 71.

On Umarelli: https://umarelli.org/nyc/3017740071/645-dekalb-avenue

More construction in Bedford-Stuyvesant: https://umarelli.org/nyc/brooklyn/bedford-stuyvesant.md

## Building permits

- Major Renovation — Enlargement, filed May 18, 2026, estimated cost $756K, 6 units added, 4 stories, described as “Vertical & horizontal enlargement to existing 2 story & basement building.”

## Property taxes

- Assessment: $79,680
- 2026–27 tax: $2,559
- Market value (city estimate): $1,328,000
- Taxable value: $12,896
- Assessed land: $6,780
- Assessed improvements: $72,900

## Zoning

R6A: floor area ratio 1.20 built, 3.00 allowed by base zoning.

## Recent sales

- Apr 16, 2026: $1,700,000, 2,250 sq ft ($756 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