KDF KDF is a design firm composed of Architects, Interior Designers, and Planners with offices in Yakima and Spokane Washington. Working in both the Northwest and Internationally, we specialize in Healthcare, Cultural, Educational, and Residential projects for both public and private clients. Our 35 years of experience include feasibility studies, master plans, facility programs, and new and renovated buildings. The foundational design elements at KDF Architecture are context, exploration, and collaboration. Context is used to frame the problem, the process is explorative and takes advantage of a variety of media, and collaboration develops a shared vision between the design team and the clients. KDF Architecture takes pride in celebrating and enhancing the distinct characteristics of each site, program, and client.