# 577 6th Street, Brooklyn

Two-family · built c. 1911 · Block 1085, Lot 66.

On Umarelli: https://umarelli.org/nyc/3010850066/577-6-street

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

Every lot on block 1085: https://umarelli.org/nyc/brooklyn/1085.md

## Building permits

- Alteration, filed Apr 27, 2023, estimated cost $6K, described as “Alt.2 to add new powder room on the 1 floor of a duplex apartment. The scope of work includes new non-load bearing partitions, new door, new lavatory, toilet and new mechanical bathroom exhaust. No change to use, egress or occupancy. No…”
- Alteration, filed Apr 27, 2023, estimated cost $5K, described as “Alt.2 to add new powder room on the 1 floor of a duplex apartment. The scope of work includes new non-load bearing partitions, new door, new lavatory, toilet and new mechanical bathroom exhaust. No change to use, egress or occupancy. No…”

## Property taxes

- Assessment: $342,420
- 2026–27 tax: $16,592
- Market value (city estimate): $5,707,000
- Taxable value: $82,805
- Assessed land: $47,580
- Assessed improvements: $294,840

## Zoning

R7B: floor area ratio 2.37 built, 3.00 allowed by base zoning.

## Flood zone

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

## Landmarks

Part of Park Slope Historic District (Historic District). 4 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