# 323 Avenue O, Brooklyn

Three-family · built c. 1930 · Block 6584, Lot 56.

On Umarelli: https://umarelli.org/nyc/3065840056/323-avenue-o

More construction in Ocean Parkway: https://umarelli.org/nyc/brooklyn/ocean-parkway.md

## Building permits

- Demolition, filed Jul 25, 2025
- Major Renovation — Residential, filed May 5, 2023, estimated cost $192K, 1 unit in all, 3 stories, described as “Application filed herewith to propose horizontal and vertical extension of existing two(2) story with cellar and attic, three (3) dwelling unit building. Converting to a one (1)family building.”

## Property taxes

- Assessment: $115,680
- 2026–27 tax: $12,644
- Market value (city estimate): $1,928,000
- Taxable value: $63,718
- Assessed land: $29,400
- Assessed improvements: $86,280

## Zoning

R5: floor area ratio 0.61 built, 1.50 allowed by base zoning.

## Recent sales

- Nov 2, 2022: $2,350,000

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