# 5123 20th Avenue, Brooklyn

Two-family · built c. 1930 · Block 5470, Lot 1.

On Umarelli: https://umarelli.org/nyc/3054700001/5123-20-avenue

More construction in Borough Park: https://umarelli.org/nyc/brooklyn/borough-park.md

Every lot on block 5470: https://umarelli.org/nyc/brooklyn/5470.md

## Building permits

No building permits on file for this lot.

## Property taxes

- Assessment: $96,420
- 2026–27 tax: $9,446
- Market value (city estimate): $1,607,000
- Taxable value: $47,603
- Assessed land: $26,520
- Assessed improvements: $69,900

## Zoning

R5: floor area ratio 1.10 built, 1.50 allowed by base zoning.

## 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