185 Ainslie Street, Brooklyn
Condominium · 4 units · built c. 1901 · Block 2769, Lot 7502.
Building permits
- Alteration, filed Nov 19, 2024, estimated cost $9K, described as “Installation of temporary needle beam as per plans. Work shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Jan 25, 2023, estimated cost $4K, described as “Plumbing for converting existing 3 story with basement and cellar building to a 4 story with cellar and penthouse building.”
- Alteration, filed Nov 28, 2022, estimated cost $160K, described as “Sprinkler system for a 4 story with cellar and penthouse building.”
- Alteration, filed Sep 15, 2022, estimated cost $5K, described as “Proposed installation of heavy duty sidewalk shed as per plans. Live load 300 lbs per square feet. Sidewalk shed shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Sep 15, 2022, estimated cost $9K, described as “Proposed installation of temporary pipe scaffold as per plans. Work shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Aug 23, 2022, estimated cost $1K, described as “Installation of temporary construction fence.”
- Alteration, filed Aug 16, 2022, estimated cost $369K, described as “Structure for a 4 story with cellar and penthouse building.”
- Alteration, filed Aug 16, 2022, estimated cost $61K, described as “Support of excavation for a new well at the rear of the cellar, including shoring and bracing.”
- Alteration, filed Aug 9, 2022, estimated cost $139K, described as “New foundation in conjunction with existing foundation.”
- Major Renovation — Conversion, filed Aug 8, 2022, estimated cost $1.9M, 1 unit added, 4 stories, described as “Converting existing 3 story with basement and cellar building to a 4 story with cellar and penthouse building.”
- Alteration, filed May 19, 2022, estimated cost $56K, described as “Partial interior demolition and roof repairs in a 3 story with cellar and basement building.”
Property taxes
- Assessment
- $854,099
- 2026–27 tax
- $33,411
- Market value (city estimate)
- $1,897,999
- Taxable value
- $268,596
- Assessed land
- $97,649
- Assessed improvements
- $756,450
- Condo units with their own tax lots
- 4
Zoning
R6B: floor area ratio 2.33 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jan 12, 2026: $2,310,000, Apt PH1
- Nov 5, 2025: $2,490,000, Apt 1
- Oct 24, 2025: $2,443,800, Apt PH2
- Oct 23, 2025: $2,200,000, Apt 2
Open-market sales since 2016, from the Department of Finance’s sales files.