On many college campuses, the 21st century classroom is the exception rather than the norm. Here's what usually happens: A forward-thinking administrator pushes for a pilot program to redesign a handful of classrooms. The resulting learning spaces are cutting edge and successful--in high demand among faculty and students alike. And that's as far as the program goes. The vast majority of traditional classrooms on campus remain untouched. It's the kind of false dawn that the University of Southern California (USC) is determined to avoid. The campus is three years into an initiative intended to remodel all 210 general-access learning spaces within five years. And the initiative won't stop there. As of April, renovations had been completed on 110 classrooms, including spaces in each of USC's three computing centers, and four of the campus's 20 auditoriums. During the summer, an additional 55 classrooms and five auditoriums will be redone. This article examines how USC has used data to make design choices for three key types of general-access space: (1) computer labs; (2) classrooms; and (3) auditoriums. (Contains 1 online resource.)