Master of Landscape Architecture, 1983, California State Polytechnic University Pomona, Pomona, California.
Bachelor of Science (Environmental Horticulture and Design), 1980, University of California at Davis, Davis, California.

Design Office
1986 - present Principal of Joan Radditz, Landscape Architect.

1989 – present Registered Landscape Architect, State of California, License Number 3102.

1987 - Present Santa Barbara City College, Landscape Drafting and Architectural Rendering.
1990 - 1992 Santa Barbara Botanic Garden, The Mediterranean Garden: Spanish, Mexican and Southwest Landscape Design.
1988 - 1990 University of California, Santa Barbara Extension, Elements of Landscape Design.

Published Work
"Montecito Grasses," Robert Smaus, Los Angeles Times Magazine, September 2, 1990,

1999 – 2000 Biographee, Marquis’ “Who’s Who in the West.”

1992 American Institute of Architects, Santa Barbara Chapter, Exceptional Service to the City of Santa Barbara as a member of the Single Family Residence Design Guidelines Committee.
1988 Santa Barbara Beautiful Award.

Co-Author of Inland Coastal Hills, a land analysis and land use recommendation presented to, and under a grant by, the Irvine Company.
Author of Landscape Drafting Workbook.

Professional Affiliations
2004 - 2010 National Charity League, Santa Barbara Chapter.
1991 - present American Society of Landscape Architects.
1999 - 2002 Women’s Board Member, Santa Barbara Museum of Art.
1991 - 1992 Board Member, City of Santa Barbara Architectural Board of Review.
1991 - 1992 Board Member, Las Positas Friendship Park.
1989 - 1992 Board Member, Junior League of Santa Barbara.
1988 - 1990 Lotusland Foundation Docent.

Landscape Architectural Travel and Study
1983-1985 Europe, Asia, North America, Australia.