His first major commission was in 1921 to build the
Whittier Hotel near the bank of the
Detroit River. He later went on to design many office buildings, theaters, and ballrooms. Agree was one of the Detroit architects of the 1920s and 1930s who utilized the services of architectural sculptor
Corrado Parducci. As architecture changed by the 1960s, so did Agree's commissions. He began designing many modern-style malls. In addition to the office in the
Book Tower, Agree's firm later opened an office on McNichols Road in Detroit and then a suburban office in
Bloomfield Hills. Several Agree-designed buildings have been plundered by architectural scavengers. These include the
Vanity Ballroom, where several Mayan-Deco panels were torn off, and the
Grande Ballroom, which brought rock band
MC5 into fame, which has sat empty since closing in 1972. ==Agree-designed buildings==