Stefan Hampdenprincipal

After graduating from the University of Colorado, Stefan worked for architectural firms in New York, Boulder, and Seattle, as well as teaching as an adjunct professor at the University of Colorado. Graduating from the University of Washington School of Architecture in 1997 with a Masters of Architecture, Stefan founded CAST, in 1999 with Matt Hutchins. In addition to working as a partner in CAST Stefan is a regular part time lecturer at the University of Washington School of Architecture.      

Matt Hutchins - principal

As one of the founders of CAST architecture, Matt has spent more than twenty years working to increase the vitality of the city and the environment. Through the thoughtful design of housing, vibrant urban spaces, advocacy for more open space and better density, and inclusive community design, Matt brings idealism and experience to each project. His design work integrates architecture and landscape, plans for flexible function, and builds for longevity and performance. He is pragmatic, collaborative, and always client-centered.

He is a recognized expert in community design, and a national advocate for pro bono design via the One Percent. He is a former board member of Groundswell NW and is working to bring more mass transit and new public parks to his own neighborhood, West Seattle.

Matt is a registered architect in Washington. He graduated with Honors from the University of Colorado, and Distinction from Arizona State University. He has taught design at the University of Washington and Arizona State University.

Away from the office, Matt loves to explore the big, wide world with his wife and daughter.

Tim Hammer - principal

Tim has worked on a spectrum of residential, multifamily and mixed-use projects.  He has a reputation for listening to and addressing his client's needs and is noted for his ability to distill a complex matrix of requirements, ideas, and desires into simple, elegant building solutions. His appreciation of craftsmanship and nature informs all of his designs and helps his work respond to each site's unique conditions and surrounding context.

As a principal at CAST architecture Tim fosters a culture of thoughtful, collaborative design that draws on the collective strengths of the entire CAST team in order to deliver design excellence. His award winning projects have been featured in numerous regional and national publications.

Tim joined CAST architecture in 2006 and was elevated to principal in 2012.  He is a registered architect in the State of Washington. He received a Master of Architecture from the University of Washington and a Bachelor of Art and Design from Montana State University. While studying at the University of Washington, Tim was awarded an 18-month research scholarship to live and study architecture in Japan.

Forrest Murphy - principal

Forrest has a wide range of experience working with private and public clients from the non-profit sector. He has worked with religious institutions such as Temple Beth Am, Seattle University School of Theology, and Temple Ahavath Beth Israel; with cultural institutions such as the Wing Luke Asian Museum, the Squaxin Island Tribe and the Burke Museum of Natural History; and with educational institutions such as the University of Washington, Peninsula College, Seattle Central Community College, Grays Harbor College and Olympic College. 

Prior to coming to CAST, Forrest worked with Schacht | Aslani Architects in Seattle and Torres/LaPeña Arquitectos in Barcelona, Spain. 

Forrest is a registered architect in the State of Washington and is a LEED accredited professional. He received a Master of Architecture from Yale University. 

Sofia Soto - associate

Since starting at CAST in 2015, Sofia has worked on a variety of residential and institutional projects. 

Prior to moving to Seattle, Sofia studied at Texas Tech University receiving a Master of Architecture and a Master of Business Administration. During this time Sofia worked as an architectural intern in Mexico and Texas, as well as studying architectural principles in France. She enjoyed being a part of non-profit organizations and editor-in-chief to her alma mater's annual design publication. 

As a designer, she is interested in social and cultural backgrounds, sustainable practices, and contemporary designs that strive to create a sense of place and embrace a given setting.  Sofia enjoys the unique complexities of graphic and product design. 

When not spending her time designing, Sofia likes reading and a good cup of coffee. 


Brian Campbellassociate

Brian spent 18 years in Anchorage, Alaska before moving to Boulder, Colorado for his undergraduate degree. After flirting with the idea of pursuing economics and international affairs, he wandered into the architecture studio on campus one day and hasn’t looked back since.

With his B.EnvD from the University of Colorado complete, he then moved back to the West Coast to get his Masters of Architecture from the University of Oregon’s Portland program, focusing on urban design and urban architecture.

In between & during the completion of his two degrees, he’s been a camp counselor, human resources assistant, front-end web designer, several different shades of intern, and a sometime graphic designer. Brian has a lifelong passion for art and for design of as many scales and kinds as he can get his hands on. He joined CAST in late 2015 and is currently working towards licensure.


Sarah Hill associate

Sarah strategically sought out warmer weather when she relocated to Seattle from Minneapolis and joined the CAST crew in Winter of 2015.  New to the west coast, Sarah has spent the majority of her life in the Midwest; earning her Bachelor of Architecture at Iowa State University and Master of Urban Design at Washington University in St. Louis.  Post-education she moved to Minneapolis and worked for five years at an architecture firm focusing primarily on Science + Technology and Aviation projects.

Outside of the office, Sarah runs a small jewelry business centered on simplistic, geometric designs that highlight the medium – concrete.  She is an equal urban and natural enthusiast and loves spending her time divided between city-life and the off-road trails that surround it.