Southwestern Illinois' ST. CLAIR SQUARE was Greater St. Louis' first dual-level, fully-enclosed mall. The shopping hub, dedicated in October 1974, originally encompassed approximately 580,100 leasable square feet and seventy stores and services. At this time, it had just two anchors, Famous-Barr and Sears.
By 1980, the mall had grown into a one million square foot -one hundred and thirty store- buying behemoth. J.C. Penney had been added in 1976, followed by Stix, Baer & Fuller, and a new East Wing, in 1979. A westward enlargement of Famous-Barr expanded that store by 40,200 square feet.