The practice of architecture is a highly personal service. Particular attention must be paid to the people involved in the conceptualization and construction of a successful project.

Castanes Architects presents almost thirty years of architectural work on a variety of building types throughout the Pacific Northwest. We are a small, client-oriented office with a fun, unique and constantly evolving collaborative approach to design projects.

From the initial site development, to the most intricate details, our work represents the culmination of clear communications and careful management of the expectations of our clients.

Relying on design and technical proficiency, our goal is to deliver a project that provides a positive sense of achievement for the entire project team of owner, architect and builder.


Jim Castanes

Award winning Architect Jim Castanes, AIA, founded Castanes Architects in 1984 with the goal of creating spaces that enhance the environment and the community as a whole. The influence of his extensive European travels can be found in many of the firm’s projects. His work has been featured in The New York Times, Luxe Magazine, Seattle Homes & Lifestyles, Northwest Home, and many other regional publications.  Castanes Architects is a Seattle based studio focused on a client-oriented approach to design for select, fun projects.  We are a small team of architects dedicated to design & technical proficiency in a variety of building types.



Jordan Cowhig

Jordan is originally from the midwest, but came to Seattle to study Architecture and Construction Management at the University of Washington. Traveling around the country to compete and place in design-build competitions, her expertise is in integrating the design and construction processes. In her free time, she enjoys cooking, sketching, and a good glass of wine.


Matt Decker

Matt is a PNW local that graduated with his degree in architecture from the University of Oregon. Having grown up and in Oregon, he understands the importance of responsible design and construction to reduce the overall energy, and carbon impact of the built environment. Matt relishes in merging science with art,  and the challenges of efficient design to create beautiful, and functional space. When away from work, he enjoys roaring through the hills on his Italian motorcycle, cooking dinner with/for his fiancé, and aspires to travel through continental Europe to ride on historic race tracks.