Cal. Gov. Code § 25374.5
Notwithstanding any other provision of law, the board of supervisors in counties with a population of over 600,000 and under 700,000, as determined on the basis of the 1960 federal census, may, without advertising for bids, lease any real property owned by a county to any nonprofit corporation or nonprofit association for a term not to exceed 55 years for the purpose of constructing, operating and maintaining buildings, structures and facilities on such property for medical research and education and allied health care. Any instrument by which such property is leased as aforesaid shall require the lessee named in such lease to construct on the leased premises a building or buildings to be used for the public purpose of medical research and education and allied health care during the term of said lease and shall provide that title to such buildings shall vest in the county at the expiration of the lease term, and shall contain such other terms and conditions as the board of supervisors may deem to be in the best interests of the county.
Ca. Gov. Code § 25374.5