Cal. Ed. Code § 17497
Notwithstanding the other provisions of this article, any school district governing board may designate not more than two surplus schoolsites as exempt from the provisions of this article for each planned schoolsite acquisition if the school district has an immediate need for an additional schoolsite and is actively seeking to acquire an additional site, and may exempt not more than one surplus schoolsite if the district is seeking immediate expansion of the classroom capacity of an existing school by 50 percent or more.
The exemption provided for by this section shall be inapplicable to any schoolsite which, under a lease executed on or before July 1, 1974, with a term of 10 years, was leased to a city of under 100,000 population for park purposes, was improved at city expense, and used for public park purposes.
Ca. Educ. Code § 17497