Notwithstanding Part 11 (commencing with Section 15850) of Division 3 of Title 2 of the Government Code, the board may select, purchase, or acquire in the name of the plan, the fee or any lesser interest in real property, improved or unimproved, and may remodel and equip, or construct an office building in the greater metropolitan Sacramento area, including the City of Sacramento, the County of Sacramento, and the eastern part of Yolo County, for the purposes of establishing a permanent headquarters facility for the system.