20 Manhattan Avenue
Williamsburg, Brooklyn
Parcel ID (BBL): 3031130004
Owner: Mordechai Z. Halberstam
Debt: August 14, 2025, $11.6 million
Built: 1931
Renovated: 2000
SF: 22,500
Dwelling units: 24
No. of buildings: 1
Class: Over Six Families Without Stores (C1)
Floors: 4
Legacy BBLs: 3031130004
Transactions:
• Mordechai Z. Halberstam borrowed $11.6 million from CMFG Life Insurance Company for 16-20 Manhattan Avenue and 32 Varet Street, Williamsburg, Brooklyn on August 14, 2025.
• Mordechai Halberstam borrowed $12.2 million from Santander Bank for 20 Manhattan Avenue, 32 Varet Street, East Williamsburg, Brooklyn on April 09, 2020.
Development:
• Mordechai Halberstam filed plans for alteration in Williamsburg, Brooklyn, on July 29, 2022.
• Mordechai Halberstam filed plans for alteration in Williamsburg, Brooklyn, on June 08, 2022.
• Mordechai Halberstam filed plans for alteration in Williamsburg, Brooklyn, on July 22, 2021.
• Mordechai Halberstam filed plans for alteration in Williamsburg, Brooklyn, on January 30, 2018.
• Mordechai Halberstam filed plans for alteration in Williamsburg, Brooklyn, on June 26, 2000.
Violations:
According to city public data, the properties have received $50 in OATH penalties in the last year.