Lake Oswego High School first opened in September 1951 as a six-year school, with an enrollment of 564. In 1956, it became a four-year high school with the opening of Lake Oswego Junior High School, and in 1958, a three-year high school (with 589 students) as the junior high expanded to include the 9th grade (for a total of 656 students). In the fall of 2005, construction was finished on a completely new campus. Built over the original school, the new building featured classrooms equipped with built-in projectors and
SMART boards. Other improvements included a state-of-the-art 500-seat theater and a building wing designated for art classes. Several years later,
mold and defects in the walls and roof of the school and gym, as a result of faulty construction, were detected. A string of lawsuits ensued between the school district and parties involved with the construction. The district eventually reached a $6.7 million settlement with its primary contractor, Robinson Construction Company, and several smaller settlements with sub-contractors. Repair work to fix the school's structural problems was completed in 2012. In 2012, Bruce Plato announced his retirement after 11 years as
principal of Lake Oswego High School. The School Board elected Assistant Principal Cindy Schubert as his replacement, effective in the 2013-2014 school year. The current principal is Kristen Colyer. ==Academics==