66 6 Avenue

Owner: Axg Management

Acquired: April 26, 2024, $3.9 million

Built: 1930

SF: 4,606

Dwelling units: 3

No. of buildings: 1

Class: Stores, Apartments Above (K4)

Floors: 4

HPD Ownership Registration Information

Last registered: 2025-12-31 (expires 2026-09-01)

Transactions:

• Firebird Grove sold 479 Bergen Street, Prospect Heights, Brooklyn for $3.9 million to AXG Management on April 26, 2024.

• Andrew Hirsch sold 479 Bergen Street, Prospect Heights, Brooklyn for $2.5 million to Adam J. Semler on October 16, 2020.

Development:

• Chengronghao Gu filed plans for alteration in Prospect Heights, Brooklyn, on May 14, 2024.

• Jair Gutierrez filed plans for alteration in Prospect Heights, Brooklyn, on October 29, 2023.

• Vipin Agarwal filed plans for alteration in Prospect Heights, Brooklyn, on November 23, 2021.

• Balwinder Kaul filed plans for A3 in Prospect Heights, Brooklyn, on June 26, 2013.

• Ariey Musbaum filed plans for alteration in Prospect Heights, Brooklyn, on April 12, 2010.

Violations:

According to city public data, the properties have received $600 in OATH penalties in the last year.

Latest Stories:

• Firebird Grove sells mixed-use in Prospect Heights for $3.9M (April 29, 2024)

• Adam Semler pays $2.5M for retail property in Prospect Heights (October 19, 2020)