Coates Design
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Coates Design
Seattle Architects Coates Design specializes in sustainable design and green building techniques. Unique among other Seattle Architects is our ability to solve complex design problems with a customized, client-focused design process that is both efficient and highly rewarding.

Our 14-person architectural design firm is located on Bainbridge Island near Seattle, Washington, providing professional design services for commercial, civic, residential and healthcare projects all over the State of Washington, as well as California, Oregon, Idaho, and beyond.These services include architecture, programming and planning, interior design, feasibility studies and sustainable design.

The Coates Design team is inspired by Owner and Architect Matthew Coates AIA, who has built a firm that is committed to creating a positive impact. As a local Seattle Architect, Coates has carefully assembled a creative and experienced team that shares a deep belief that architecture, when executed thoughtfully, builds community and contributes to the fiber that elevates and holds society together.
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Coates Design Architects is a 11-person architectural firm located on Bainbridge Island near Seattle, Washington. The firm provides professional design services for commercial, civic, residential and healthcare projects throughout the United States. Services include architecture, programming and planning, interior design, feasibility studies and sustainable design.
We believe that better design leads to better living. We seek to create buildings that not only do no harm- but also have a positive impact on the environment and the people who use them. As the President and Principal Architect for Coates Design Architects, Matthew Coates brings positive energy to the team that promotes creativity and transforms challenges into innovative and pleasing design solutions.
We share a deep belief that architecture, when executed thoughtfully, builds community and contributes to the fiber that elevates and holds society together. We believe that architecture itself is often shaped by its biological and inherent relationship to its environment. Our desire is to create and advocate for responsible architecture; architecture that advances the quality of our world, our ability to perceive it and our relationship to it.
People spend nearly 80% of their lives in buildings. Coates Design Architects strives to address this reality by contributing buildings and spaces to our communities that are provocative, healthful and inspiring. We approach every project as an opportunity to design something unique that reflects the needs and goals of the individual client and creates a meaningful sense of place.
Sustainability is the premise on which our firm was founded-as such we incorporate sustainable concepts into everything we do. Green principles, design strategies and technical advances are embedded into our company culture and our daily approach to design. With our office located in the Seattle community we take pride in our role as a leader in the sustainable design industry.
Reviews (10)
Eunhye Song
Eunhye Song
Dec 27, 2020
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Great design and Great people! They are very welcoming, responsive, and responsible. Love their creative and thoughtful sustainable design and green buildings.
Isabelle Hoonan
Isabelle Hoonan
Oct 08, 2020
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I can tell whenever I see a Coates design on the island because of its trademark commitment to innovative form and function. The architects seem to be pushing boundaries within the design world while preserving the island's natural resources.
Walras Leon
Walras Leon
Sep 12, 2020
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My wife and I hired them to design a tricky renovation of our bungalow in Seattle. We wanted it to be a lot more modern and we got it...we LOVE the design! For some reason the refrigerator didn’t fit without some creative engineering in the contractors part but it’s all good now. We are very happy with Cortes - they took care of everything for us - definitely one of the best Seattle Architects...and we interviewed 6. Talented and responsive team of designers.
Lonnie Hyde
Lonnie Hyde
Aug 29, 2020
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A man with a vision, pays extreme attention to detail, environmentally appropriate designs, sculpting the design culture of Bainbridge Island, functional, attractive and honestly rich design quality.
Madelyn Walls
Madelyn Walls
Jul 15, 2020
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The team at Coates Design makes you feel welcome and their designs continue to surprise me and inspire beautiful architecture! They are fun-loving and truly care about the community!
Laurie Bradby
Laurie Bradby
May 11, 2020
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Positive: Professionalism, Quality, Responsiveness, Value
With excellent customer service, Coates Design really took the time to listen to my ideas and came up with the best design to meet my needs.
Laury Bryant
Laury Bryant
May 05, 2020
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Matthews team designed our ‘forever home’ on land owned by our grandparents a generation ago—we love it’s beautiful and comfortable design.
Keats Hoonan
Keats Hoonan
Jan 14, 2020
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I ❤️ Coates Design. They are highly skilled architects dedicated to their craft, but also lovely and accommodating human beings that are a pleasure to do business with.
Luke Carpenter
Luke Carpenter
Aug 25, 2019
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Coates Design was hired to do a commercial addition/remodel of a public facility. Their depth of knowledge was impressive as well as their response to the project. When issues arose, as they always do, they responded to the site and worked with all parties to resolve the issues to the owners satisfaction.
Additionally, Cynthia C. was instrumental in a residential remodel that significantly added to the resale value of that property.
Asa Rabin
Asa Rabin
May 11, 2019
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Positive: Quality, Value
The buildings drafted by Coates Design are both aesthetically pleasing, and far more sustainable than competitors. Not much more you can ask for from an architect. I won’t even get started on how friendly, responsive, and welcoming the staff is.