WWII halted growth until the late 1940s, when entrepreneur and entertainment lawyer A. Ronald Button bought 400 acres, including the subdivision, and started building hundreds of homes. In the mid 1950s Button partnered with media personality Art Linkletter to further expand Rancho Mirage. The duo sold the remaining lots to other developers who continued to build through the 1960s.
Post-war, guest ranches included the infamous Desert Air ‘Fly-In’ hotel (now the Omni Rancho Las Palmas) and the White Sun Guest Ranch. Thunderbird Ranch opened in 1947 with accommodations in western-style ranch cottages. Horse-riding and chuckwagon breakfasts were the main attractions. In the 1950s, other hotels were built including the celebrity owned ‘Whispering Waters’ and 'The Casbah'.