The current Miamisburg High School was built in 1972 at approximately 100,000 sq ft and originally featured the controversial but then-popular open plan concept of "classrooms without walls."

This involved construction of a 32,000 square feet (3,000 m2) two-story gymnasium complex complete with a running track and gymnastics area, locker rooms, and fine arts classrooms (known as the 600's wing).

This addition (known as the 200s wing) included 20 classrooms, administrative suites, a teachers lounge, and a two-story atrium which serves as a student commons area and entrance lobby.

Faced with increasing student enrollment, the district embarked on an ambitious, $21 million renovation and expansion project at the high school between 2009 and 2012 funded as part of a district-wide facilities improvement program.

This multimillion-dollar reconstruction of Miamisburg High School also included a renovated and expanded student dining commons which can accommodate approximately 700 people (about 60% more than the previous space), reconfigured administrative spaces, a new main stairwell in the atrium, comprehensive renovation of the 400s classroom wing built in 1982, new teacher workrooms, a remodeled media center, new weight training and physical fitness classrooms, a dedicated wrestling gym, renovated music classrooms, a state-of-the art television production studio, a new interior courtyard adjacent to the commons area, redesigned/enlarged parking lots, and a pedestrian plaza outside the main entrance.

New construction at the high school was designed to follow the aesthetics of the 1993 addition including its characteristic windows, brick face, and decorative massing.