According to our records, this business is located at 3115 Thayer St. in Evanston (in Cook County), Illinois 60201, the location GPS coordinates are: 42.0677499 (latitude), -87.721479 (longitude). Keehan Dian AIA is categorized under Designers-Architectural (SIC code 8712). Known organization president is Dian Keehan. You can contact the company by phone at (847) 869-4005.