In fall, 1946, the Church of the Holy Angels established a grade school on its property at the corner of Holly Avenue and Huntington Drive in the city of Arcadia, California. The school was officially dedicated on March 14, 1948 and opened with 325 students in eight classrooms. In 1952, eight more classrooms, a Jr. High Library, teachers’ lounge, and boys’ and girls’ locker rooms were added to the existing structure.

The Sisters of St. Francis of Penance and Charity ran the school until 1971. The Congregation of Sisters of St. Felix of Catalice (Felicians) took their place until a shortage of sisters forced the order to withdraw in 1989. A lay principal and faculty currently staff the school.

When double classrooms were no longer required, the extra rooms were converted for a variety of uses. A Kindergarten classroom was added in 1986. Pre-Kindergarten classes began in 1993. A computer lab was set up in 1987, remodeled in the fall of 1996 and again in 2005. A school daycare center was set up in 1990. The science room was renovated as a state of the art science lab in 1998. The library was renovated in the summer of 2006..

In summer, 1999 the pre-kindergarten program was licensed by the State under Title 22. To conform to licensing, the Pre-Kindergarten classroom was moved to another classroom where a self-contained environment, which included age-appropriate restrooms, a kitchen and outside play yard equipment could be provided. At the same time, Holy Angels School’s Campus Ministry program obtained a permanent office in what was once the original school office. The Music room was relocated to a refurbished classroom.

In summer, 2001, the Jr. High restrooms were remodeled and updated.