Within the City of Pasadena, the Design and Historic Preservation Section reviews plans for construction and building alterations affecting historic properties, conducts historic building surveys, carries out environmental reviews in compliance with state and federal laws regarding the preservation of historic resources, designates properties as landmarks and landmark districts, and directs…

The Metropolitan Water District of Southern California manages a library and archival repository documenting the activities of the organization and resources of interest to the greater history of the Los Angeles region. 

Mount Saint Mary's University was founded by the Sisters of St. Joseph of Carondelet in 1925 as the first Catholic women's college west of the Mississippi. It comprises two historic sites, the Chalon Campus high above Brentwood (1930), and the Doheny Campus, which occupies the former estate of Edward and Estelle Doheny, including the Doheny Mansion at 8 Chester Place (1899).