[5] In 1915, South Lyon Union High School was constructed on the same site at Liberty and Warren.

[citation needed] In 1990, South Lyon High School moved to its current location, at 11 mile and Pontiac Trail.

[5] In 1999, South Lyon High School received an addition, that included 22 classrooms, an auxiliary gym, and a new wrestling room.

Over the 2007 summer break, South Lyon High School underwent a major renovation including new flooring, new ceilings in the commons area, and more modern design features.

South Lyon High School also hosts the annual RED OUT, which raises money for the American Heart Association and has brought over 10,000 dollars in some years.