Ridgeland-Oak Park Historic District

Oak Park, United States

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Heritage registerNational Register of Historic Places↗

The Ridgeland–Oak Park Historic District in Oak Park, Illinois encompasses 1,558 contributing buildings across 539 acres and was listed on the National Register of Historic Places in 1983. Predominantly characterized by Prairie School architecture, the district includes two Frank Lloyd Wright–designed structures: the George W. Smith House, an early residential example of his work, and the Unity Temple. Beyond Wright's influence, the district preserves notable early twentieth-century civic and commercial buildings, including the Oak Park Post Office on Lake Street (1933), designed by Charles E. White Jr. and Bertram A. Weber in Art Deco style, and the Art Deco Medical Arts Building by local architect Roy J. Hotchkiss. While the district lacks the concentration of Wright's mature Prairie style found in the adjacent Frank Lloyd Wright–Prairie School of Architecture Historic District, it remains an important repository of architectural diversity from the era.