# 6804 20th Avenue, Brooklyn

Single family with store · built c. 1931 · Block 5578, Lot 39.

On Umarelli: https://umarelli.org/nyc/3055780039/6804-20-avenue

More construction in Bensonhurst: https://umarelli.org/nyc/brooklyn/bensonhurst.md

Every lot on block 5578: https://umarelli.org/nyc/brooklyn/5578.md

## Building permits

- Alteration, filed Dec 11, 2024, estimated cost $20K, described as “Install (3) new boilers for existing 2-family dwelling and (1)commercial store in cellar as per plan. No change in use, egress or occupancy under this application.”
- Alteration, filed Dec 11, 2024, estimated cost $30K, described as “Renovation of existing cellar and second floor with plumbing work:relocate kitchen and bathroom fixtures; new boilers and hot water heaters on cellar; no change in use, egress or occupancy under this application.”
- Alteration, filed Dec 11, 2024, estimated cost $100K, described as “Renovation of existing cellar and second floor with general construction:new partitions, doors, flooring and cosmetic work; no change in use, egress or occupancy under this application.”
- Alteration, filed Dec 2, 2020, estimated cost $2K, described as “Proposed replace existing boiler in existing 2 story building. Plumbing works as per plan. No change in use, egress and occupancy.”
- Alteration, filed Dec 2, 2020, estimated cost $2K, described as “Proposed replace existing boiler in existing 2 story building. Plumbing works as per plan. No change in use, egress and occupancy.”

## Property taxes

- Assessment: $83,580
- 2026–27 tax: $8,744
- Market value (city estimate): $1,393,000
- Taxable value: $44,064
- Assessed land: $14,100
- Assessed improvements: $69,480

## Zoning

R5: floor area ratio 1.28 built, 1.50 allowed by base zoning.

## Recent sales

- Nov 15, 2024: $990,000

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