Cal. Gov't Code § 37380
(b) Notwithstanding the 55-year limitation in subdivision (a), a city may lease property owned or held or controlled by it, or any of its departments or boards for a period exceeding 55 years but not exceeding 99 years, if all of the following conditions are met:
(4) Any lease shall be awarded to the bidder which, in the determination of the legislative body, offers the greatest economic return to the city, after competitive bidding conducted in the manner determined by the legislative body. Notice inviting bids shall be published pursuant to Section 6066 in one or more newspapers of general circulation within the city.
The provisions of paragraphs (2), (3), and (4) do not apply to any charter city, which may utilize a procedure as specified by charter or adopted by ordinance in accordance with its charter.