20 Sidney Place
Brooklyn Heights, Brooklyn
Parcel ID (BBL): 3002630045
Owner: Benjamin Kornblum
Debt: February 04, 2026, $6 million
Built: 1838
SF: 12,024
Dwelling units: 25
No. of buildings: 1
Class: Over Six Families Without Stores (C1)
Floors: 4
Transactions:
• Benjamin Kornblum borrowed $6 million from JPMorgan Chase for 20 Sidney Place, Brooklyn Heights, Brooklyn on February 04, 2026.
• Jack Kornblum borrowed $6.3 million from New York Community Bank for 20 Sidney Place, Brooklyn Heights, Brooklyn on January 27, 2021.
Development:
• Narinder Kaur filed alteration job B00418757 for 2,000 sqft building with 25 apartments in Brooklyn Heights, Brooklyn, on October 27, 2020.
• Benjamin Kornblum filed alteration job 340777680 for J-2 building with 25 apartments in Brooklyn Heights, Brooklyn, on October 19, 2020.
• Benjamin Kornblum filed alteration job 340770561 for RES building with 26 apartments in Brooklyn Heights, Brooklyn, on September 29, 2020.
• Jack Kornblum filed alteration job 340768208 for RES building with 26 apartments in Brooklyn Heights, Brooklyn, on September 22, 2020.
• Benjamin Kornblum filed alteration job 340762222 for RES building with 26 apartments in Brooklyn Heights, Brooklyn, on September 02, 2020.
Violations:
According to city public data, the properties have received $5,000 in OATH penalties in the last year.