East and west wings, designed by Kennard, added in 1926. Located on the same site of two earlier courthouses. The major public building in Polk County from 1908 to 1987. Presently a local museum. Frame and Masonry Vernacular, Classical Revival, Prairie School.
Bungalow styles are common.
District includes residences, churches, schools and clubhouses. Little changed from when the area was developed. An affluent area. Many buildings were designed by professional architects. Public and Private.