Smith replaced Weaver as Campus Architect, and as such worked as professor, architect, and construction manager for many projects on and off-campus.  These included Commons, completion of Troy Hall (begun by architect Julius Zittel), rebuilding the barn now called Lewis Alumni Center, (following destruction by fire), Duncan Dunn Hall, Bohler Gym, Memorial Hospital, White Hall, Hollingberry Field House, Stock Judging Pavilion, Waller Hall, Steam Plant, Pine Manor, Wilmer-Davis Hall, and Smith Gym.  Smith also prepared preliminary architectural work for several buildings on which the main architectural work was done by commissioned architectural firms.

Also in 1923 Fred G. Rounds joined the architecture department, serving as assistant professor and assistant designer to Smith in the campus architects office.  Rounds joined Smith in the architectural firm Smith & Rounds, and the partnership designed many residences on Pullman’s College Hill, including the present-day Casa Latina and Native American Cultural House, and several other houses in the College Hill Historic District (on the National Register of Historic Places) and on the Pullman Register of Historic Places.