991 Willoughby Avenue

Owner: Mordechai Halberstam

Debt: April 28, 2021, $14.1 million

Built: 2007

Renovated: 2007

SF: 35,993

Dwelling units: 36

No. of buildings: 1

Class: Semi-Fireproof With Stores (D7)

Floors: 10

Legacy BBLs: 3031840060

HPD Ownership Registration Information

Last registered: 2025-07-23 (expires 2026-09-01)

Transactions:

• Mordechai Halberstam borrowed $14.1 million from Citibank for 991 Willoughby Avenue, Bushwick, Brooklyn on April 28, 2021.

Development:

• Moshe Neiman filed plans for A3 in Bushwick, Brooklyn, on February 09, 2017.

• Piotr Siwiec filed plans for A3 in Bushwick, Brooklyn, on August 30, 2017.

• Izzy Neiman filed plans for A3 in Bushwick, Brooklyn, on August 02, 2013.

• Mor Halberstam filed plans for A3 in Bushwick, Brooklyn, on April 07, 2016.

• Lorraine Hosty filed plans for A3 in Bushwick, Brooklyn, on July 18, 2013.

Violations:

According to city public data, the properties have not received any significant violations in the last year.