Designed by the architectural firm, Libling, Michener & Associates, the new school building was defined as a modernist structure. The firm was awarded a Massey Silver Medal for the design in 1964.
By 1961, the faculty of St. Paul's College High School recognized that change was necessary. The former college building was crumbling and unsafe, and Paul Shea Hall was overcrowded.
Considering financial constraints, the building committee determined that relocation out of downtown was the best course of action. The new home of the school, the Town of Tuxedo, was selected following a study of the Catholic community. Many members of this community now lived in the city's south-west rather than the North End.
These foundational decisions allowed the process to quicken. In short order, an architectural firm was hired, the downtown campus was sold, and the new school site was secured. With G.A. Baert leading the construction process, the building was completed ahead of schedule.
On September 15th, 1964, the first classes were held in the new building at 2200 Grant Avenue.
Since the school's relocation to Grant Avenue, the new building has undergone many renovations and expansions to provide students with a modern and well-equipped educational environment.