Los Angeles County Department of Regional Planning

Historic Preservation Ordinance - HP Ordinance

Historic Preservation Ordinance

This ordinance is applicable only to properties located in the unincorporated areas of Los Angeles County. For properties located within the City of Los Angeles, please contact the city’s Office of Historic Resources at (213) 978-1200.

On September 1, 2015, The Board of Supervisors adopted the Historic Preservation Ordinance (“HPO”) to:

  • Enhance and preserve the County's distinctive historic, architectural, and landscape characteristics that are part of the County's cultural, social, economic, political, and architectural history;
  • Foster community pride in the beauty and noble accomplishments of the past as represented by the County's historic resources;
  • Stabilize and improve property values in and around the County's historic resources, and enhance the aesthetic and visual character and environmental amenities of these historic resources;
  • Recognize the County's historic resources as economic assets and encourage and promote the adaptive reuse of these historic resources;
  • Further establish the County as a destination for tourists and as a desirable location for businesses; and to
  • Specify significance criteria and procedures for the designation of landmarks and historic districts, and provide for the ongoing preservation and maintenance of these landmarks and historic districts.

HPO County Code


Application Materials and Fees

Writing an Architectural Description Guide

Registry of Landmarks and Historic Districts

Los Angeles County Historical Landmarks and Records Commission

Doumakes House Landmark Designation - May 17, 2016

HPO Hearing Documents

Department Spotlight

Homeless Español UAIZ Yard Sale Buying Property SEATAC SMM LCP Historic Preservation TOD ALUC DRP Video Library Interactive GIS Mapping Applications

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Department of Regional Planning
320 West Temple Street
Los Angeles, CA 90012
T: (213) 974-6411 . F: (213) 626-0434
TDD: (213) 617-2292
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