[3] Priteca met Seattle vaudeville theatre owner Alexander Pantages in 1910 and won a commission from him to design the San Francisco Pantages Theater (1911), the first of many so-named vaudeville and motion picture houses in what would become one of the largest theater chains in North America.

Pantages is said to have liked Priteca as a theater architect for his ability to create the appearance of opulence within a less-than-opulent budget.

Priteca's apprentices included Gregory Ain, who went on to success as a modernist architect (practicing in a very different manner).

Ain worked with Priteca for a short time in the late 1920s and helped draw the Los Angeles Pantages.

[6] He remained active as an architect well into his later years, working as a consultant in the design of the Seattle Opera House (1962) and the Civic Auditorium (1968) in Portland, Oregon.