 Windows on floors 17 through 19 are recessed and framed by large arches.The facade is finished by limestone balustrade and copper mansard roof.The architectural firm of Smith Hinchman & Grylls designed both the original 7-story building, with work done by Pontiac Construction, and the 12-story addition, with construction by the H. G. Christman-Burke Company, now The Christman Company of Lansing, Michigan.