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, AIA - 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 advocates for abundant urban housing options, backyard cottages, sustainable building and open spaces. He serves on AIA Seattle's Housing Task Force and Housing Design Forum Committee, and the SW Design Review Board. He is a recognized expert in community design, accessory dwelling units and the low rise land use code. 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. 


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.  

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Adam Clements associate

Adam moved to Seattle with his wife in 2013, after completing a Bachelors of Social Ecology at UC Irvine. He then attended the University of Washington and received a Master of Architecture with a concentration in Sustainable Systems and Design. He finished the program in June 2017 and joined the CAST team shortly after.

Adam is passionate about sustainable design and the capacity for architecture to strengthen communities and cultures. He conducted a Master’s thesis that proposes emergent models for Native American schools, aimed at transforming the educational context on US reservations. He is drawn to the use of materials and processes to capture place and identity in built works.

Beyond architecture, Adam enjoys spending time with his wife and kids, exploring the urban world, and doing the foodie thing.

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Michael Meer associate

A designer with a strong curiosity and passion for discovery, Michael came to Seattle to explore the natural wonders of Washington, while developing his sustainability knowledge and interests. 

A native of Wisconsin, Michael obtained his BS in Architecture from the University of Minnesota and his M. Arch from the University of Oregon, where he established an ecologically conscious mindset in design.  Michael has also spent time working at architecture firms in Minneapolis, MN and Boulder, CO exploring various perspectives of architectural design and cultures.

Away from the office Michael also enjoys building custom furniture, camping, spending time with his friends and family and following his favorite football team from back in Wisconsin.


Heather Redrow associate

Heather graduated with a Bachelor of Architecture from Auburn University in 2016 and joined the CAST team in 2019.

Her background includes project types of various scales including hospitality, workplace, and custom residential. Every project reflects careful attention to the delicate relationship between nature, structure, and materials from the finest details to the larger composition of a space. During design, Heather blends key components of a client’s vision with socially responsible practices to create refined and intentional spaces. During construction, she works closely with the contractor to ensure accurate interpretation of design intent in the field.

Outside of work you can find her in the pottery studio or exploring the northwest.