Cal. Educ. Code § 16521

In addition to the purposes for which apportionments may be made to school districts under Section 16520, apportionments may also be made to school districts for the construction, repair, attachment or development of offsite facilities, utilities or improvements which the board determines are necessary to the proper operation or functioning of the school facilities for which apportionments are made, all of which purposes are hereby declared to be, and are, public works.