The L.A. Mills Building began as an elementary school in 1963. After a decade an expansion was needed due to the increase of young children. From 1997 to December 1999, 9th and 10th grade students called L.A. Mills home. In early 2000, a six-month renovation transformed the facility to what it is today, the L.A. Mills Administration Complex.

It has also been used for district voting, school board meetings, teacher orientation and training, advance classes for high school students and community immunizations.