126 5 Avenue
Park Slope, Brooklyn
Parcel ID (BBL): 3009430240
Owner: Senlac Ridge Partners
Acquired: July 31, 2020, $59.4 million
Debt: November 01, 2022, $142.9 million
Built: 2023
Renovated: 2024
SF: 265,855
Dwelling units: 180
No. of buildings: 2
Class: Semi-Fireproof With Stores (D7)
Floors: 6
Legacy BBLs: 3009430240
Transactions:
• Senlac Ridge Partners and William Macklowe Company borrowed $142.9 million from Sumitomo Mitsui Trust Bank for 120 5th Avenue, Park Slope, Brooklyn on November 01, 2022.
• Senlac Ridge Partners borrowed $18 million from 10-120 5ave Lender, LLC for 120 5th Avenue, Park Slope, Brooklyn on April 08, 2021.
• William Macklowe Companies borrowed $18 million from 10-120 5Ave Lender, LLC for 128 5th Avenue, Park Slope, Brooklyn on July 31, 2020.
• Avery Hall Investments sold 128 5th Avenue, Park Slope, Brooklyn for $59.4 million to William Macklowe Companies on July 31, 2020.
Development:
• Avery Hall filed new building job 321191410 for 123,381 sqft R-2 building with 120 apartments in Park Slope, Brooklyn, on October 10, 2017.
• Avery Hall filed new building job 321191394 for 52,012 sqft R-2 building with 40 apartments in Park Slope, Brooklyn, on October 10, 2017.
• Gary Griggs filed alteration job B01366088 for 1 sqft building with 180 apartments in Park Slope, Brooklyn, on March 06, 2026.
• Gary Griggs filed alteration job B01351207 for 13,764 sqft M building with 49 apartments in Park Slope, Brooklyn, on January 27, 2026.
• Gary Griggs filed alteration job B01327192 for 13,764 sqft M building with 49 apartments in Park Slope, Brooklyn, on December 23, 2025.
• Gary Griggs filed alteration job B01258054 for 16 sqft building with 131 apartments in Park Slope, Brooklyn, on August 07, 2025.
• Gary Griggs filed alteration job B01258055 for 16 sqft building with 131 apartments in Park Slope, Brooklyn, on August 07, 2025.
Violations:
According to city public data, the properties have received $700 in OATH penalties in the last year.