# 50 Prospect Park West, Brooklyn

College · built c. 1892 · Block 1077, Lot 32.

On Umarelli: https://umarelli.org/nyc/3010770032/50-prospect-park-west

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

Every lot on block 1077: https://umarelli.org/nyc/brooklyn/1077.md

## Building permits

- Alteration, filed Oct 5, 2026, estimated cost $287K, described as “Replace 2 existing rooftop AC units (RTU-1/RTU-2) on existing pads. Connect to existing supply/return ductwork, replace duct insulation, and extend existing gas piping to accommodate new equipment. No change to use, egress, or occupancy.”
- Alteration, filed Apr 28, 2022, estimated cost $20K, described as “Equipment use permit for existing ac unit. No change of egress, occupancy or use.”
- Alteration, filed Jan 25, 2022, estimated cost $5K, described as “Filing Structural modifications to the existing deteriorated concrete stairs and installing temporary structural support as per plans filed herewith. No change in use, egress, or occupancy.”

## Property taxes

- Assessment: $921,600
- Market value (city estimate): $2,048,000
- Taxable value: $0
- Assessed land: $387,000
- Assessed improvements: $534,600

## Tax breaks

- Nonprofit exemption (college or university), with no end date, about $99,975 a year below the full tax.

## Zoning

R7A (part of the lot is R7B): floor area ratio 0.66 built, 4.00 allowed by base zoning.

## Flood zone

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

## Landmarks

Part of Park Slope Historic District (Historic District). 19 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