The "campus" shown outside the window of the Dean's office is actually a photograph of buildings in the Walt Disney Studios. This very same backdrop was used during the run of the "Disneyland" television show for scenes shot on the set that served as Walt Disney's "office" when he hosted segments of the program. One oddity is that the building seen in the backdrop was actually the one that housed the real location of Walt's office.
The glimpse of Disney Studios goes well beyond the use of a backdrop. The exterior college shots (excluding the opening still frame of a specific building) are of the Disney Studio campus. Walt Disney intended for the studio to have such a look. The early scene where the students eavesdrop on the meeting of school officials takes place on the patio of the studio commissary.