145 South 9th Street, Brooklyn
Condominium · 26 units · built 1992 · Block 2138, Lot 7501.
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Building permits
- Alteration, filed Dec 2, 2025, estimated cost $460K, described as “General construction work to existing 2-family 4-story building with vertical enlargement at penthouse. Supersede previous application #302217848. Address ecb violation #34531785N. Obtain new certificate of occupancy”
- Alteration, filed Oct 21, 2025, estimated cost $29K, described as “Installation of solar panels.”
- Alteration, filed Jul 8, 2025, estimated cost $40K, described as “Herewith filing an alteration type 2 application to remove the existing fifth floor structure. Filing to provide framed bulkhead at roof level. No change in use, egress or occupancy”
- Alteration, filed Oct 16, 2024, estimated cost $100K, described as “Scope of work alteration type 2 herewith filing to add skylight; no change to use, occupancy or egress.”
Property taxes
- Assessment
- $2,814,272
- 2026–27 tax
- $246,733
- Market value (city estimate)
- $12,458,005
- Taxable value
- $2,014,881
- Assessed land
- $1,045,826
- Assessed improvements
- $1,768,446
Zoning
R6: floor area ratio 0.18 built, 2.43 allowed by base zoning.