California Code, Government Code - GOV § 14671.5

In addition to any other provision of law granting authority to the Director of General Services to enter into leases of state property, the Director of General Services, with the consent of any state agency having jurisdiction thereof, may lease for a term not to exceed thirty (30) years any real property which belongs to the state, provided that the lessee is required to construct on the premises a parking structure for the use of the state during the term thereof, and the title to such facilities shall vest in the state at the expiration of said term or earlier.  Such lease may contain such other terms and conditions as the Director of General Services may deem to be in the best interests of the state.

Any project proposed to be constructed under the provisions of this section which was not authorized by the Legislature at the time the acquisition of the real property was authorized, shall not be undertaken unless authorized by the Legislature.