The Isidore H. Heller House is a house located at 5132 South Woodlawn Avenue in the Hyde Park community area of Chicago in Cook County, Illinois, United States. The house was designed by American architect Frank Lloyd Wright. The design is credited as one of the turning points in Wright's shift to geometric, Prairie School architecture, which is defined by horizontal lines, flat or hipped roofs with broad overhanging eaves, windows grouped in horizontal bands, and an integration with the landscape, which is meant to evoke native Prairie surroundings.The work demonstrates Wright's shift away from emulating the style of his mentor, Louis Sullivan. Richard Bock, a Wright collaborator and sculptor, provided some of the ornamentation, including a plaster frieze. The ownership history of this building demonstrates the property's evolution and development in the framework of surrounding Hyde Park buildings, and the building's location in the current community—near other Prairie School architecture—includes this building into the overall body of Lloyd Wright's work. The Heller House was designated a Chicago Landmark on September 15, 1971, and added to the National Register of Historic Places on March 16, 1972. On August 18, 2004, the U.S. Department of the Interior designated the house a National Historic Landmark.
