The Junior High School was built in 1959 at North New Braunfels Avenue for the amount of $725,000. The two-story, contemporary, brick building featured thirty classrooms, a gymnasium, cafeteria, and band hall. In 1961, a nine-hundred-seat auditorium was added with a tennis court provided a few years later.

The campus welcomed sixth graders in 1981, making Alamo Heights Junior School home to sixth, seventh and eighth graders.

As a result of a bond election in 1989, AHJS received a new library, fine arts spaces and a 125-seat theater. In 2005, the district passed it's largest bond, which provided a new fine arts building; to include a choir, band and strings performance hall and several practice rooms.