Mayo Hall was the first permanent building built at Cal Maritime making it the most historic and beloved building on campus. It was constructed in 1945 as a Memorial Gymnasium to honor the graduates who lost their lives in World War II and served as Cal Maritime’s main athletics and recreation facility for over 50 years. The rehabilitation of Mayo Hall called for the demolition of non-historic additions to make way for a new modern single-story addition. The interior layout is organized around a main circulation space dubbed “The Concourse” from which all the different programs for student life and cadet services are connected. The former gymnasium houses two large multi-purpose conference rooms and student leadership and career services in an open loft-like second floor addition. The former natatorium remains relatively open and active, housing student life spaces. The Health Services Department occupies the Northside addition with its own separate and discrete entrance. Admissions, registrar, and financial aid departments inhabit the other half of the new addition. Mayo Hall emphasizes shared, cultural spaces such as the Wall of Honor, a gallery to display Cal Maritime relics, and impromptu spill-out spaces that are critical for meeting and conference room functions. These spaces not only display the shared history of California Maritime and its alumni but will also act as a recruitment tool for attracting future cadets to campus.