The Walter Pyramid was officially opened on November 30, 1994, when it hosted a Long Beach State 49ers men's basketball game against the Detroit Titans, which aired live on ESPN. A standing-room only crowd of 5,021 saw Long Beach come away victorious with a final score of 71-64.

The Walter Pyramid was designed by Don Gibbs and built by the Nielson Construction Company of San Diego. The building of Walter Pyramid cost approximately $22 million dollars. Each side of the perimeter of Walter Pyramid measures 345 feet (105 m), making it a mathematically true pyramid. It is one of only three true pyramid-style buildings in the United States, the others being Luxor Las Vegas in Las Vegas, Nevada and Pyramid Arena in Memphis, Tennessee. The Walter Pyramid rises 18 stories above the Long Beach skyline and its exterior is uniformly clad in sheets of dark-blue corrugated aluminum.

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