Will Parker:

Mary Warren received her sociology Ph.D. at Arizona State University in 1997—and enjoyed her time at the Tempe campus so much she has decided to go back and live there.

The 72-year-old recently paid around $500,000 for a two-bedroom apartment at Mirabella, a 252-unit high-rise project on ASU’s downtown campus aimed at seniors and developed by the university with a private real-estate firm. Ms. Warren said she’s looking forward to moving in and auditing courses at the university when the development opens at the start of the 2020 fall semester.

“There’s so much out there to learn, you might as well take advantage of it,” said Ms. Warren, an early-childhood-education professor.