[6] In June 2014, the Santa Clara Unified School District purchased 59.4 acres of the former Agnews Developmental Center to build a K–12 educational facility.

[12][13] Construction began in 2016, with the elementary and middle schools finishing in 2021.

[14][15] Kathleen MacDonald High School was completed the following year and opened to freshmen in August 2022.

[16][17] It is named after Kathleen MacDonald, a longtime teacher and administrator at Adrian C. Wilcox High School.

[21] MacDonald also offers time for Personalized, Competency-Based Learning (PCBL) twice each week to support and encourage students.