4211 Avenue K
Flatlands, Brooklyn
Parcel ID (BBL): 3077900001
Owner: Moshe Halberstam
Debt: October 05, 2020, $16.1 million
Built: 1959
SF: 78,396
Dwelling units: 73
No. of buildings: 2
Class: Semi-fireproof (Without Stores) (D1)
Floors: 6
HPD Ownership Registration Information
Last registered: 2025-08-21 (expires 2026-09-01)
Moshe Halberstan
Head Officer
1413 38 # BROOKLYN, NY, 11218
4200 Ave K Equities Llc
Corporate Owner
1413 38th street # Brooklyn, NY, 11218
Diamond Management
Agent
1413 38 Brooklyn, NY, 11218
Ari Mossberg
Site Manager
Transactions:
• Moshe Halberstam borrowed $16.1 million from New York Community Bank for 4211 Avenue K, 4200 Avenue K, East Flatbush, Brooklyn on October 05, 2020.
Development:
• Michael Li filed plans for alteration in Flatlands, Brooklyn, on June 22, 2023.
• Moshe Halberstam filed plans for alteration in Flatlands, Brooklyn, on January 25, 2023.
• Benjamin Machtinger filed plans for alteration in Flatlands, Brooklyn, on May 15, 2018.
• Moshe Halberstam filed plans for alteration in Flatlands, Brooklyn, on September 15, 2020.
• Moshe Halberstan filed plans for A3 in Flatlands, Brooklyn, on October 06, 2005.
Violations:
According to city public data, the properties have received 47 housing violations, $50 in OATH penalties, and one housing litigation in the last year.