Costa Mesa Mayor Katrina Foley, second from right, joins other area dignitaries in unveiling a plaque Saturday commemorating the history and significance of the Diego Sepulveda Adobe at 1900 Adams Ave.(Photo by Spencer Grant)
Adelia Sandoval of the Juaneno Band of Mission Indians opens Saturday’s plaque dedication proceedings with a Native American prayer outside the Diego Sepulveda Adobe in Costa Mesa.(Photo by Spencer Grant)
Boy Scout Evan Peabody salutes the flag during Saturday’s historical plaque dedication at the Diego Sepulveda Adobe in Costa Mesa.(Photo by Spencer Grant)
Costa Mesa Mayor Katrina Foley, right, gives a certificate of recognition for the new Diego Sepulveda Adobe plaque to, from left, Helen Meyers and Lee Ramos of the Orange County Historical Commission and Gary Parkin of the Costa Mesa Historical Preservation Committee.(Photo by Spencer Grant)
Visitors pose for a photo outside the Diego Sepulveda Adobe in 2016.(File Photo)
Visitors tour the Diego Sepulveda Adobe during an Early California Days event in 2016. At right is a mannequin in historical dress.(File Photo)
County and city officials gathered in Costa Mesa’s Estancia Park on Saturday to unveil a plaque commemorating the history and significance of the Diego Sepulveda Adobe.
The event — presented by the Orange County Board of Supervisors and county Historical Commission in cooperation with the city — included a dedication ceremony and tours of the adobe at 1900 Adams Ave.
The adobe, which is maintained by the Costa Mesa Historical Society, was built as a station of Mission San Juan Capistrano roughly 200 years ago and is believed to be Costa Mesa’s oldest building.
It now houses a museum containing artifacts from and information about four periods of California history — Indian, Mission, Spanish and Victorian.
For more information, visit costamesahistory.org/visit/adobe.