About Our Studio

Seattle Architects Julie Campbell and Buzz Tenenbom started their unique collaboration of art and pragmatism, CTA Design Builders Inc., in 1991. Since its inception, they have achieved success in creating living spaces that are functional, beautiful and a joy to inhabit!

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Julie Campbell, AIA, earned her Bachelor’s Degree in Interior Design from the University of Manitoba and her Masters in Architecture from the Massachusetts Institute of Technology. Coming from a contractor family, she really learned to build when working hands-on constructing her mother’s house outside Toronto! A deep believer in the importance and value of “home” as the wellspring of well-being, Julie works with every client to make their project resonant and personal. Having discovered her love for residential architecture early in her career, Julie’s design work is noted for its creative space-planning and unique use of materials, detail and colour. Julie has also been a painter for many years, and incorporates her love of the outdoors into her artwork.

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Buzz Tenenbom, AIA, became enamored with architecture while he was on the scaffolding building houses and studying about solar and wind power in Vermont.  He made the move to Boston and earned his professional degree at Boston Architectural College. He has researched, published and taught on the subject of the symbiotic relationship between buildings and the environment.  Having piloted our combined design and construction enterprise for so many years, Buzz is now enjoying a return to what he loves most: being an architect!  His hands-on experience as a contractor and builder assures you of intelligent and resourceful use of your time and money. Buzz is also a Project Manager for Architects Without Borders, leading design teams working on projects for communities in need, most recently in Sierra Leone and Haiti.  He loves travel, music, and theater, plus being outdoors, hiking, and playing with the dog.


Andrew Phillips, Architectural Designer  Andrew grew up in Pennsylvania and has a Bachelor’s of Fine Arts degree in Painting and Sculpture from the Atlanta School of Art.  After several vacations to Washington from hot and humid Atlanta, he was hooked and made the move to Seattle. He started his career working in an architectural office — which resonated, as that was the natural extension of sculpture!  And, having since worked in other design-build firms, he has honed his design skills for turning concepts into reality. He is our in-house expert developing beautifully detailed construction drawings. Outside of work, Andrew is a competitive rower and enjoys taking his daughters to their cyclocross meets and ballet classes. We love Andrew unconditionally because he keeps our espresso machine in top working order!

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Bethany Davies, Architectural Designer  Bethany loves design.  All kinds…from buildings to shoes!   She started her career with a degree in Interior Design from La Roche College in Pittsburgh, then worked in product design before getting her Masters in Architecture at the University of Buffalo.  After graduating, she moved to a large firm in New York City, designing BIG buildings!  Since being in Seattle, she has come to love the so-called slower pace and yes, with it, designing smaller buildings, finding that the scale and personal approach in residential design resonates deeply for her. When she’s not at work, she is either knitting, making shoes or hiking in our beautiful mountains. We’re thrilled she has joined our team!

Becky Reinhold, Architectural Designer We were lucky to scoop Becky up just as she finished her Masters of Architecture at the University of Washington. She is a lively addition to our team, occasionally enlightening us about cheese and libation pairings from her earlier years as a cheesemonger in San Francisco! She has a BA in studio art from the College of Charleston and brings a good design eye to developing a project concept. Becky is a serious hiker and enjoys exploring the great Pacific North West at every opportunity by foot, bike or sailboat!

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Charlie, Office Dog  Charlie spends rainy days with us here in the office, keeping us in good humor no matter what the weather or intensity of construction. Charlie is known and loved by more people than anyone we know!

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