Once located at Chaparral Road and 66th Street, Casa Blanca Inn was originally built as a residence for the Donald Kellogg family of Buffalo, New York. Designed and built by local architect Robert T. Evans, the house was constructed from adobe in the late 1930s. In 1923, Evans and his wife Sylvia Gates relocated to Phoenix from Ohio and never looked back. Once here, Evans found quite a niche in adobe structures for the next decade, building an architecture firm, the Evans Construction Company, as well as publishing a periodical on such homes called, Adobe: A Magazine of Arizona Architecture, regaling the benefits of living in an adobe home.
Here are two interesting articles about Robert Evans:
CB_1930_Evans
Source: Scottsdale Historical Society & AZ Architecture