| Built by Clinton J. Warren, who began his architectural career with Burnhan and Root around 1880 and founded his own office in 1886. The ten-story north block of the Congress, on the southwest corner of Michigan Avenue and Congress Parkway, was completed in 1893. The fourteen-story addition to the south was sonstructed in two parts, in 1902 and 1907. Holabird and Roche received the commission for the annex but followed Warren's design almost exactly. |