Founded in 1974, AO is a full service Architectural, Master Planning and Design firm specializing in Retail, Residential and Mixed-Use projects. We have over 45 years of experience in architecture and in the building industry working with America's premier Multifamily, Retail, Commercial, Mixed-Use real estate developers. The firm is one of Southern California's most respected and sought-after Architectural and Planning firms and is widely recognized as an industry leader in the design of high quality projects.