Cleveland County Oklahoma (Historic Districts) has 6 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include Norman Historic District, DeBarr Historic District, Downtown Norman Historic District (Boundary Increase), Norman City Park New Deal Resources and Southridge Addition Historic District.
Some of the country's most noteable architects helped create the Cleveland County places including Works Progress Administration, Moore & Weymess-Smith and Harold Gimeno. Prominent architectural styles found in Cleveland Country are American Small House/Fha House/Minimal Traditional, Bungalow/Craftsman and Early Commercial.