135 Prospect Park West, Brooklyn
Co-op · 41 units · built c. 1903 · Block 1091, Lot 35.
Building permits
- Alteration, filed Sep 23, 2026, estimated cost $65K, described as “Filing for waterproofing, glasswork & tiling in shower/bathroom. Removal of partition walls. No change to use, occupancy or egress.”
- Alteration, filed Jun 2, 2026, estimated cost $145K, described as “Plumbing systems installation as per plans filed herein”
- Alteration, filed Jan 6, 2026, estimated cost $250K, described as “Structural repair work to existing structure”
- Alteration, filed Sep 17, 2025, estimated cost $40K, described as “Emergency shoring and repair work to existing building”
- Alteration, filed Dec 6, 2024, estimated cost $91K, described as “Obtain DOB Approval for the renovation of unit #51A on the 5th Floor. Scope of work: general construction, plumbing, and mechanical systems. No change in use, egress, or occupancy.”
- Alteration, filed Oct 29, 2021, estimated cost $10K, described as “Renovate existing kitchen and bathroom as per plans filed. No change in use, egress or occupancy.”
- Alteration, filed Oct 28, 2021, estimated cost $40K, described as “Renovate existing apartment #54 kitchen and bathroom as per plans filed. No change in use, egress or occupancy.”
- Alteration, filed Oct 1, 2021, estimated cost $36K, described as “Combination of two adjacent apartments including new non-structural partition walls, new doors, new finishes, new AC system and new plumbing fixtures. Pl work type is filed under a separate application”
- Alteration, filed Oct 16, 2020, estimated cost $5K, described as “Filing for the plumbing work in conjunction with the interior renovation. No change in use, egress or occupancy.”
Property taxes
- Assessment
- $2,511,450
- 2026–27 tax
- $230,679
- Market value (city estimate)
- $5,581,000
- Taxable value
- $2,096,210
- Assessed land
- $211,050
- Assessed improvements
- $2,300,400
Tax breaks
- Co-op and condo abatement, with no end date, a $30,258 credit this tax year.
Zoning
R7A: floor area ratio 4.66 built, above the 4.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Feb 10, 2025: $525,000
- Aug 7, 2024: $1,325,000
- Jul 19, 2024: $1,293,178
- Jun 27, 2024: $1,400,000
- Mar 15, 2022: $600,000
- Dec 21, 2021: $604,369
- Oct 20, 2020: $1,150,000, Apt 41A
- Jul 16, 2019: $1,150,000
- Jan 24, 2018: $498,000
- Dec 7, 2017: $1,150,000
The 10 most recent of 12 open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Park Slope Historic District (Historic District). 46 Landmarks Preservation Commission permits are on file.