Contact Us

Missouri Phone: 314.421.3542
Missouri Fax: 314.421.4821
Illinois Phone: 618.624.2080
Illinois Fax: 618.624.2088
inquiries@ittnerarchitects.com

Corporate Headquarters:

611 N. Tenth Street
Suite 200
St. Louis, Missouri 63101

Illinois Headquarters:

333 Salem Place
Suite 110
Fairview Heights, Illinois 62208

Project Office:

2501 Chatham Road
Suite 105
Springfield, Illinois 62704