The original high school building, located on Mill Street in Huntley, was built in the 1960s and only featured about a dozen classrooms and outdated facilities.

In 1999, the building's first major addition was a 12 classroom wing on the west end designed for temporary usage for grades 5 through 8.

The east addition provided the high school with a much larger gym, art and music classrooms, a 700-seat auditorium, student facilities and administrative offices.

Space has already been dedicated for an additional high school at the Square Barn Road Campus in Algonquin, Illinois.

In addition to the stage and seating areas, the theater also features an orchestra pit, backstage rooms, and balconies.

In the late 1990s, the school district faced threats of legal action by Native American groups claiming the mascot was a racial slur and in 2002 its use was abolished.

As Huntley High School's enrollment approached 1,000 in the early 2000s, it became class AA and joined the much larger suburban Fox Valley Conference in 2002.