The Sullivan Center, formerly known as the Carson, Pirie, Scott and Company Building or Carson, Pirie, Scott and Company Store, is a commercial building at 1 South State Street at the corner of East Madison Street in Chicago, Illinois. Louis Sullivan designed it for the retail firm Schlesinger & Mayer in 1899 and later expanded it before H.G. Selfridge & Co. purchased the structure in 1904. That firm occupied the structure for only a matter of weeks before it sold the building to Otto Young, who then leased it to Carson Pirie Scott for $7,000 per month, which occupied the building for more than a century until 2006. Subsequent additions were completed by Daniel Burnham in 1906 and Holabird & Root in 1961.