Dean Christensen

Dean has over 25 years of diversified experience in Landscape Architecture, Urban Design, Land Planning, Exhibit design and Sports Field design. He specializes in design build or Contractor lead projects.  He is a native of the Northwest coming from a family lineage of Contractors that have taught him proper construction practices and coordination skills for creating solutions while in the field.



Courtney Lewis

Courtney has 10 years of professional experience. Her focus in the office centers on complex planting designs and computer renderings.  The Oregon native has a Bachelor of Science in Horticulture from Oregon State University and a Master in Landscape Architecture from Washington State University.  Courtney has a passion for plants and ensuring that the variety selected will flourish in the given area. The landscape designer is a student of regionally adapted plants.


Richard Keast

Richard has over 16 years of professional experience. A Montana native, he has lived and worked in Oregon, Washington, and Colorado. As senior project manager, Richard coordinates projects from the computer-aided design phase all the way through the built environment. Because he has worked for both design firms and construction firms he is able to effectively communicate with field staff to resolve issues and ensure the build-out of our designs.


Image of David Vala

David Vala

Founding Principal of Vala-Christensen Landscape Architects David Vala has moved on to pursue other personal interests. His nurturing influence on our employees while helping them pursue design excellence will be missed. We wish him the best in his artistic ventures and travels!