The Heyworth Building is a Chicago Landmark located at 29 East Madison Street, on the southwest corner of Madison Street and Wabash Avenue in Chicago, Illinois. The building was constructed in 1904 by the architectural firm of D. H. Burnham & Company under the commission of Otto Young, a real estate investor and wholesale jeweler. It received its name from the son in law of Otto Young, Lawrence Heyworth, who also supervised construction of the building. Like many other buildings along Wabash Avenue, the Heyworth historically housed watchmakers, jewelers, and associated businesses. This structure was one of the final buildings designed by Frederick P. Dinkelberg at the firm before administration was turned over to Ernest Robert Graham.