# 5801 20th Avenue, Brooklyn

Four-family · built c. 1931 · Block 5507, Lot 9.

On Umarelli: https://umarelli.org/nyc/3055070009/5801-20-avenue

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

Every lot on block 5507: https://umarelli.org/nyc/brooklyn/5507.md

## Building permits

- Alteration, filed Oct 2, 2023, estimated cost $5K, described as “Installation of pipe scaffolding as per plans. All equipment shall comply with chapter # 33 of the 2022 code. No change in use occupancy or egress under this application.”
- Alteration, filed Aug 24, 2023, estimated cost $1K, described as “Proposed temporary construction fence”

## Property taxes

- Assessment: $447,300
- 2026–27 tax: $15,889
- Market value (city estimate): $994,000
- Taxable value: $127,735
- Assessed land: $92,700
- Assessed improvements: $354,600

## Zoning

R5: floor area ratio 1.31 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