Swiss Prime Site AG (SWX:SPSN) acquired Fifty-One in Zürich from Union Investment on December 1, 2023. The real estate consultant JLL (Jones Lang LaSalle) accompanied the sale. Union Investment received legal advice from the law firm Lenz & Staehelin and KPMG as Accountant.

Swiss Prime Site AG (SWX:SPSN) completed the acquisition of Fifty-One in Zürich from Union Investment on December 1, 2023.