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Tim Andersen Architect

Tim Andersen Architect

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About Us

We design new houses and cottages expressive of historic building traditions yet well-adapted for today. Our projects have spanned the range of traditions from (1880s) Queen Anne to (1950s) Midcentury Modern. Designs are consistent with the specific period while fully up-to-date in terms of structure, comfort, energy conservation and technology. We also design sympathetic well-integrated renovations and additions for houses of all periods and styles. From decades of work in historic preservation our special expertise is in adapting pre-1960 buildings without losing their character or charm. We create with our clients projects that will be a good fit for their needs, and provide enduring satisfaction. We offer clients full architectural services from initial ideas through construction. Check out our Houzz Ideabooks on topics of traditional design. Each includes a short introduction and up to fifty captioned photos. They are works-in-progress, advanced by the images and insights we find.

Services Provided

Accessory Dwelling Units (ADUs), Architectural Design, Architectural Drawings, Building Design, Custom Home, Energy-Efficient Homes, Green Building, Guesthouse Design & Construction, Historic Building Conservation, Home Additions, Home Extensions, Home Remodeling, Home Restoration, House Plans, Multigenerational Homes, New Home Construction, Sustainable Design, Period accessory buildings, Legacy homes, Renovation master plans, Traditional architecture, Well-integrated additions, Cottages and Studios, Period-appropriate design

Areas Served

Ballard, Beaux Arts Village, Bothell, Edmonds, Kenmore, Kingston, Kirkland, Lake Forest Park, Mercer Island, North Beacon Hill, Seattle, Shoreline, Woodinville, Woodway, Capitol Hill, West Seattle, Wallingford-Green Lake, Ravenna, Phinney Ridge-Greenwood, Queen Anne-Magnolia, Madison Park, Laurelhurst, Mt. Baker-Madrona, View Ridge-Hawthorne Hills


Tim Andersen is a registered architect and PLLC in Washington and California. Recent awards include the "Wallingford Design Award" for our bungalow renovation and addition, "Best of Houzz" Awards, "Recommended on Houzz" and "Houzz Influencer" badges.


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17 Projects

Example of a small classic yellow one-story concrete fiberboard gable roof design in Seattle

Green Lake Cottage

Seattle, WA
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Business Details

Business Name

Tim Andersen Architect

Phone Number

(206) 524-8841


Available Upon Request
Seattle, WA 98115

Typical Job Cost

$300,000 - 2,000,000

License Number

WA 5730, CA C19164


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12 Ideabooks

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