Central » Iowa City » Iowa City, Town Center, North » Iowa » Beta Theta Pi Beta Theta Pi Details 1929. 816 N. Dubuque St. A two-and-a-half-story large but compact English Tudor Revival block, this house has a commons room with a large one-and-a-half-story bay clothed in diamond-paned windows from which one can look out over the river. Writing Credits Author: David Gebhard and Gerald Mansheim