# 1820 Cortelyou Road, Brooklyn

Apartment building · 42 units · built c. 1928 · Block 5161, Lot 6.

On Umarelli: https://umarelli.org/nyc/3051610006/1820-cortelyou-road

More construction in Flatbush: https://umarelli.org/nyc/brooklyn/flatbush.md

Every lot on block 5161: https://umarelli.org/nyc/brooklyn/5161.md

## Building permits

No building permits on file for this lot.

## Property taxes

- Assessment: $832,050
- 2026–27 tax: $103,499
- Market value (city estimate): $1,849,000
- Taxable value: $832,050
- Assessed land: $280,350
- Assessed improvements: $551,700

## Zoning

R7A: floor area ratio 4.02 built, above the 4.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Mar 31, 2026: $3,453,382, 45,540 sq ft ($76 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