Cal. Education Code § 17051

(a) A district may enter into an agreement with another governmental entity that includes some or all of the territory of the district for the purpose of the joint use of park and recreation facilities, including an auditorium, or commercial or industrial facilities. (b) If the board receives an application for a project that includes some or all of the territory of the district for the purpose of the joint use of park and recreation facilities or commercial or industrial facilities, the board shall evaluate the application disregarding any space in the proposed joint-use facility that is beyond the needs of the district if the application contains a copy of the agreement specified in subdivision (a) and if the contract contains at least the following: (1) An agreement that the county or other appropriate entity shall deposit in the county school lease-purchase fund, created pursuant to Section 17034, an amount equal to the total cost of any space in the proposed joint-use facility that is beyond the needs of the district, prior to the signing of the construction contract for the project. The deposit shall not be refundable, except to the extent that it may prove subsequently to be in excess of the actual total cost of the space that is beyond the needs of the district. (2) An agreement between the district and the county or other appropriate entity regarding staffing, maintenance, materials acquisition, and other matters related to the administration and operating costs of the joint-use facility. (3) An agreement between the district and the county or other appropriate entity regarding the procedure for amendment or termination of the contract, including the disposition of materials housed in the joint-use facility should termination of the contract occur. (c) Any space in a joint-use facility that is beyond the needs of the district shall not be included by the board in any calculations made for any other purposes provided for in this article for the period of time that the contract for that joint-use facility remains in effect. If the contract is terminated, the board shall include the additional space in any calculations made after the termination for any other purposes provided for in this article.