497 12th Street, Brooklyn
Condominium · 8 units · built c. 1901 · Block 1097, Lot 7504.
Building permits
- Alteration, filed Aug 31, 2026, estimated cost $20K, described as “#3A- Replace kitchen cabinets & countertop, relocate sink & dw; construct new coat cl. and laundry cl.. Install new non-vented elec. W/D. #3B - Construct new laundry closet. Install new non-vented electric W/D. No change to use, occupancy,…”
- Alteration, filed Oct 6, 2023, estimated cost $17K, described as “Filing to supersede 320042191 which was never signed off. This application is to show as-built conditions. Application 320042191 will be withdrawn when this aplication is signed off.”
- Alteration, filed Dec 7, 2021, estimated cost $3K, described as “Minor renovation of cellar level of apartment 1R. Restroom and closet layout changes. No change in use, egress and/or occupancy.”
- Alteration, filed Nov 23, 2021, estimated cost $22K, described as “Minor renovation of cellar level of apartment 1R. Restroom and closet layout changes. No change in use, egress and/or occupancy.”
Property taxes
- Assessment
- $1,426,050
- 2026–27 tax
- $46,880
- Market value (city estimate)
- $3,168,999
- Taxable value
- $405,100
- Assessed land
- $45,448
- Assessed improvements
- $1,380,602
- Condo units with their own tax lots
- 8
Tax breaks
- Co-op and condo abatement, with no end date, a $3,511 credit this tax year.
Zoning
R6B: floor area ratio 2.47 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
- May 29, 2026: $1,500,000, Apt 1A
- Apr 30, 2025: $1,237,000, Apt 2B
- Sep 6, 2024: $1,155,000, Apt 4B
- Sep 15, 2022: $1,133,000, Apt 2B
- May 27, 2022: $1,120,075, Apt 4B
- Jan 4, 2021: $1,270,000, Apt 1B
- Mar 15, 2018: $1,350,000, Apt 1B
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Park Slope Historic District (Historic District). 13 Landmarks Preservation Commission permits are on file.