Residential architects and contractors.

Seattle-based architetural and design-build firm for residential projects throughout the Northwest.CTA Design Builders, Inc., Seattle architects and builders, is a full service, Seattle based, residential design and building firm with projects throughout the Northwest.

Specializes in preparing traffic studies, signing and parking studies, intersection design studies, and roadway and site plans. Regina Webster & Associates (RWA) specialize in the areas of civil design engineering, traffic and transportation planning and data collection. The firm has been actively involved as a prime contractor serving Illinois Department of Transportation, City of Chicago Departments of Transportation, Department of Aviation and various counties and municipalities including the City of Evanston and the Village of Zurich.