Sonoma Developmental Center (SDC)Sonoma Developmental Center (SDC) is the oldest facility in California established specifically for serving the needs of individuals with developmental disabilities. The facility opened its doors to 148 residents on November 24, 1891. Its aim was “to provide and maintain a school and asylum for the feeble-minded, in which they may be trained to usefulness.”
The facility at Eldridge has undergone many significant changes, including four name changes. In 1909, the name was changed from the California Home for the Care and Training of the Feeble Minded to the Sonoma State Home. In 1953, Sonoma State Home became Sonoma State Hospital; and in 1986, the name was changed to Sonoma Developmental Center. Over the years, the facility has expanded several times, including two major expansions: A thirteen million dollar expansion program was initiated in 1948, and another five million dollars was appropriated in 1956. The most recent renovation took place between 1979 and 1982, during which all the living units were renovated at a cost of about one million dollars per building, primarily to improve safety, privacy and individualized care.