The Kenaston House entered the National Register of Historic Places. Designed by E. Stewart Williams, the Rancho Mirage residence belongs to the architect's body of modern desert houses. National recognition gave the house a place in a wider architectural record, connecting it with the history of modern design in the Coachella Valley. Source: https://en.wikipedia.org/wiki/Kenaston_House
Source: National Register of Historic Places, Kenaston House, entry #16000887 (2016), identified in the supplied property record via Wikidata Q54953451