# 45 Prospect Park Sw, Brooklyn

Single family · built c. 1920 · Block 1107, Lot 12.

On Umarelli: https://umarelli.org/nyc/3011070012/45-prospect-park-southwest

More construction in Windsor Terrace: https://umarelli.org/nyc/brooklyn/windsor-terrace.md

## Building permits

- Major Renovation — Enlargement, filed Oct 19, 2026, estimated cost $953K, 1 unit added, 4 stories, described as “Construct 4 story+penthouse two family residence with existing foundation elements to remain. Vertical and horizontal enlargements. Construct new exterior walls, fenestration, new interior partitions, stairs, finishes, and cabinetry…”

## Property taxes

- Assessment: $82,260
- 2026–27 tax: $2,883
- Market value (city estimate): $1,371,000
- Taxable value: $14,530
- Assessed land: $17,880
- Assessed improvements: $64,380

## Zoning

R6A: floor area ratio 0.65 built, 3.00 allowed by base zoning.

## Recent sales

- Jan 6, 2023: $1,200,000, 720 sq ft ($1,667 per sq ft)

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