# 820 8th Avenue, Brooklyn

Apartment building · 9 units · built c. 1903 · Block 1090, Lot 42.

On Umarelli: https://umarelli.org/nyc/3010900042/820-8-avenue

More construction in Park Slope: https://umarelli.org/nyc/brooklyn/park-slope.md

Every lot on block 1090: https://umarelli.org/nyc/brooklyn/1090.md

## Building permits

- Alteration, filed Nov 13, 2025, estimated cost $20K, described as “Propose to install additional bathroom with new partition to enclose bathroom on first floor as per plans.”
- Alteration, filed Apr 5, 2025, estimated cost $5K, described as “Installation of 300 psf sidewalk shed and pipe scaffolding as per plans. All equipment shall comply with chapter #33 of the 2022 code. No change in use, egress or occupancy under this application.”

## Property taxes

- Assessment: $1,866,600
- 2026–27 tax: $43,529
- Market value (city estimate): $4,148,000
- Taxable value: $349,943
- Assessed land: $26,100
- Assessed improvements: $1,840,500

## Zoning

R7B: floor area ratio 3.19 built, above the 3.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard.

## Landmarks

Part of Park Slope Historic District Extension (Historic District). 3 Landmarks Preservation Commission permits are on file.

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