# 6404 20th Avenue, Brooklyn

Four-family with store · built c. 1931 · Block 5548, Lot 39.

On Umarelli: https://umarelli.org/nyc/3055480039/6404-20-avenue

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

Every lot on block 5548: https://umarelli.org/nyc/brooklyn/5548.md

## Building permits

- Alteration, filed Jan 6, 2020, estimated cost $8K, described as “Alteration type 3 - construction equipment - sidewalk-shed installation of temporary sidewalk shed as per plans. No change in use, egress or occupancy. Sidewalk shed shall comply with chapter #33 of the NYC building code.”

## Property taxes

- Assessment: $364,950
- 2026–27 tax: $12,213
- Market value (city estimate): $811,000
- Taxable value: $98,185
- Assessed land: $106,200
- Assessed improvements: $258,750

## Zoning

R5: floor area ratio 2.08 built, above the 1.50 base zoning allows, which bonuses, transfers or older rules can permit.

## 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