# 523 3rd Street, Brooklyn

Three-family · built c. 1899 · Block 1078, Lot 65.

On Umarelli: https://umarelli.org/nyc/3010780065/523-3-street

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

Every lot on block 1078: https://umarelli.org/nyc/brooklyn/1078.md

## Building permits

- Alteration, filed Jul 2, 2025, estimated cost $75K, described as “Install solar PV on existing rooftop. No change in use, occupancy, or egress.”
- Alteration, filed Apr 30, 2024, estimated cost $570K, described as “Renovation throughout existing 4-story residential building. Change occupancy from 3 families to 2 family. New windows, enlarge opening at rear of first floor for deck access.”

## Property taxes

- Assessment: $259,500
- 2026–27 tax: $10,035
- Market value (city estimate): $4,325,000
- Taxable value: $78,684
- Assessed land: $51,240
- Assessed improvements: $208,260

## Tax breaks

- Solar abatement, through Jun 30, 2030, a $5,579 credit this tax year.

## Zoning

R6B: floor area ratio 2.08 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Oct 27, 2021: $4,475,000

Open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

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

## Landmarks

Part of Park Slope Historic District (Historic District). 10 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