The courthouse has been designated as a historic building at the federal, state, county, and city levels. In December 1970, it was designated as Ventura County Historic Landmark No. 12. Five months later, in May 1971, it was designated as California Historical Landmark No. 847. Three months after that, in August 1971, the building was listed on the National Register of Historic Places, the first building in the city (and the second in the county) to be so recognized. When the City of Ventura adopted its own historic landmark program in February 1974, the courthouse was one of the first buildings to be selected, receiving the designation as Ventura Historic Landmark No. 4.