Mithun is an integrated design firm dedicated to creating positive change in people’s lives. As a national practice with offices in Seattle, San Francisco and LA, we are a unified design studio with an open and collaborative spirit founded on a process of inquiry and listening.

Our team of architects, landscape architects, interior designers, urban designers and planners create seamless experiences that are unique expressions of each client, community and place. We work in a wide range of typologies and scales with a focus on urban environments and places where people live, work and learn.

Mithun is an internationally recognized leader in sustainability, combining exemplary design with a focus on building and site performance, human health and social equity. Since the inception of the practice in 1949, our work has been recognized with hundreds of peer and industry awards including eight AIA Committee on the Environment Top Ten project recognitions as well as the 2023 AIA Architecture Firm Award.

For more information, visit our website at

Examples of Projects

  • 200 Occidental, Seattle, WA
  • Perot Family Office, Dallas, TX
  • UC Irvine Mesa Court Towers, Irvine, CA
  • Sustainability Treehouse, Mount Hope, WV
  • The Northwest School at 401 E. Pike, Seattle, WA
  • Nordic Heritage Museum, Seattle, WA
  • Novelty Hill-Januik Winery, Woodinville, WA
  • Goodwill Job Training and Education Center, Seattle, WA
  • University of Washington Lander Hall, Seattle, WA
  • Chatham University Eden Hall Campus, Richland Township, PA

Established: 1949



Pier 56, 1201 Alaskan Way Suite 200 Seattle, WA 98101

Phone: (206) 623-3344