Portfolio The Firm Sustainable Design Services Contact Thielsen Architects 720 Market Street Suite C Kirkland, WA 98033 Phone: 425.828.0333 Fax: 425.828.9376 Email: inquiries@thielsen.com Thielsen Architects is a service oriented architectural design firm specializing in custom residential architectural projects in Seattle, Kirkland, Bellevue, the Eastside, and throughout Washington.Thielsen Architects is a service oriented architectural design firm specializing in custom residential architectural projects in Seattle, Kirkland, Bellevue, the Eastside, and throughout Washington. All images and Architectural Works represented on this website are protected by USA Copyright. Copyright 2008, Thielsen Architects, Inc. P.S.