Mayor Mike Seminary, Commissioners Grossman and Marquardt joined Bismarck Public Schools Superintendent, School Board Members, BMDA President, PTO President and Superintendent of Secondary Schools Dr. Ben Johnson for a ribbon cutting ceremony to celebrate the opening along with many students, teachers, contractors and community members.

The last public senior high school to open in Bismarck was Century High School in 1975 (40 years ago). Legacy's indoor/outdoor facilities are expected to be widely used by other schools and the community.

The bond approval for Legacy High School took place September 18, 2012, and was approved by 85% of voters. The building cost was $55.5 million ($73 less per square foot than the national average.) The building size is 289,000 square feet on about 65 acres.