# 405 5th Avenue, Brooklyn

Mixed use · 1 unit · built c. 1925 · Block 999, Lot 8.

On Umarelli: https://umarelli.org/nyc/3009990008/405-5-avenue

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

## Building permits

- New Building — Multi-Family, filed Jun 15, 2026, 12 units, 6 stories, described as “Construction of six story new building”
- Alteration, filed Jul 6, 2026, estimated cost $160, described as “Proposed 8FT construction fence. No change to use, egress or occupancy under this application.”
- Demolition, filed Mar 31, 2026, estimated cost $150K, described as “Full demolition to a three story building”

## Property taxes

- Assessment: $495,000
- 2026–27 tax: $51,794
- Market value (city estimate): $1,100,000
- Taxable value: $477,450
- Assessed land: $87,300
- Assessed improvements: $407,700

## Zoning

R6A: floor area ratio 1.23 built, 3.00 allowed by base zoning.

## Recent sales

- Feb 5, 2025: $3,600,000

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