Historical Summary:
The 2-story building was constructed by the Chicago Telephone Co. in 1914 at a cost of $65,000. A 2-story rear addition was added by Holabird & Roche in 1922 at a cost of $25,000. In 1920 the Illinois Bell Telephone company absorbed Chicago Telephone. The top two floors were added in 1924, also by Holabird & Roche, at a cost of $125,000. The firm of Holabird & Root designed further additions in 1948 ($90,000) and 1962 ($70,000), as well as significant alterations to the facade. The company became a division of Ameritech in 1984 which was acquired by SBC Communications in 1999. In 2005 SBC changed it's name to AT&T. (source: Encyclopedia of Chicago)