665 Carroll Street

Owner: John Gamble

Acquired: December 23, 2022, $3.7 million

Built: 1920

SF: 4,160

Dwelling units: 4

No. of buildings: 1

Class: Four Families (C3)

Floors: 4

Transactions:

• Howard Pronsky sold 665 Carroll Street, Park Slope, Brooklyn for $3.7 million to John Gamble on December 23, 2022.

Development:

• John Gamble filed major alteration job B00953069 for 4,005 sqft R-3 building with 2 apartments in Park Slope, Brooklyn, on November 10, 2023.

• Christopher Coburn filed alteration job B01365064 for 4,005 sqft building with 2 apartments in Park Slope, Brooklyn, on March 09, 2026.

• Christopher Coburn filed alteration job B01355754 for 4,005 sqft building with 2 apartments in Park Slope, Brooklyn, on March 06, 2026.

• Christopher Coburn filed alteration job B01355759 for 4,005 sqft building with 2 apartments in Park Slope, Brooklyn, on March 05, 2026.

• Prabhjit Singh filed alteration job B01310171 for 760 sqft building with 2 apartments in Park Slope, Brooklyn, on November 05, 2025.

• Prabhjit Singh filed alteration job B01310168 for 1,020 sqft building with 2 apartments in Park Slope, Brooklyn, on November 05, 2025.

Violations:

According to city public data, the properties have received $10,000 in ECB penalties and $10,000 in OATH penalties in the last year.