25 Conselyea Street, Brooklyn
Condominium · 2 units · built c. 1899 · Block 2751, Lot 7509.
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Building permits
- Alteration, filed Sep 12, 2023, estimated cost $15K, 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 15, 2023, estimated cost $17K, described as “Installation of new plumbing fixtures”
- Alteration, filed Aug 10, 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 Jun 17, 2022, estimated cost $19K, described as “Foundation work filed as per plan”
- Alteration, filed Jun 7, 2022, estimated cost $2K, described as “Installing 8 Ft high construction fence around property”
- Alteration, filed May 11, 2022, estimated cost $23K, described as “Support of excavation”
- Alteration, filed May 11, 2022, estimated cost $60K, described as “Structural work type as per plan”
- Alteration, filed Mar 28, 2022, estimated cost $71K, described as “Non bearing partition demolition”
- Major Renovation — Residential, filed Jan 9, 2022, estimated cost $777K, 2 units in all, 4 stories, described as “Enlargement for an existing residential building, partition work as per plan”
Property taxes
- Assessment
- $166,140
- 2026–27 tax
- $5,432
- Market value (city estimate)
- $2,769,000
- Taxable value
- $27,377
- Assessed land
- $20,100
- Assessed improvements
- $146,040
Zoning
R6B: floor area ratio 2.32 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
- Oct 30, 2025: $4,251,194, Apt 1
- May 5, 2025: $3,500,000, Apt 2
Open-market sales since 2016, from the Department of Finance’s sales files.