In the 1930s, Scottish-American industrialist
Stanley Dollar constructed an estate in
Tice Creek Valley near Walnut Creek in
Contra Costa County, where the Dollar family bred
Hereford cattle and raised show horses. The estate expanded from to . In 1960, Dollar's son,
R. Stanley Dollar Jr., sold the estate to
Ross W. Cortese, owner of development company Rossmoor Corporation. Cortese had previously been involved in the development of a different community also called
Rossmoor in
Orange County. Cortese initially planned to develop the Walnut Creek Rossmoor as a
Leisure World community, but abandoned this plan shortly after breaking ground. The "Leisure World" trademark is still in use by the Cortese family, but has not been applied to Rossmoor in Walnut Creek for years. ==Community description==