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Marcus & Willers Architects

Marcus & Willers Architects

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About Us

Since establishing our practice in the Sonoma Valley in 1989, we have designed buildings ranging from residential additions to entire neighborhoods. We value our continuing relationships with clients, contractors and building officials, and appreciate how important these relationships are in achieving successful building projects. Our greatest source of satisfaction is in exceeding our clients expectations. Bill Willers received his Bachelor of Arts in Architecture from the University of California, Berkeley in 1984. He has been a licensed architect in California since 1988. Carol Marcus received her Bachelor of Arts in Architecture from the University of California, Berkeley in 1979, and Master of Architecture from the University of Oregon in 1983. She has been a licensed architect in California since 1986. We do what we do because we believe that the built environment, be it a neighborhood or a bedroom, can be designed to make a difference in people's lives. We get great satisfaction out of working with our clients to translate their wishes into three dimensions, creating places that capture the qualities of their surroundings, are respectful of the environment, and of our clients' budgets.

Services Provided

3D Rendering, Accessory Dwelling Units (ADUs), Architectural Design, Architectural Drawings, Bathroom Design, Building Design, Custom Home, Guesthouse Design & Construction, Kitchen Design, Laundry Room Design, Outdoor Kitchen Design, Sustainable Design, 3D Home Design, Remodeling, Site Visioning, Permit Services, Feasibility Studies, Interior Design

Areas Served

Boyes Hot Springs, El Verano, Eldridge, Glen Ellen, Kenwood, Napa, Novato, Penngrove, Petaluma, Sonoma, Temelec, Vineburg, Yountville, Fetters Hot Springs-Agua Calie, Marin


Certified Green Building Professional, 2007 Best Home under 2500 square feet Sonoma / Marin Build It Green


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16 Projects

Example of an urban courtyard patio design in San Francisco with an awning

Sonoma Foundry

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Business Details

Business Name

Marcus & Willers Architects

Phone Number

(707) 996-2396


873 First Street West
Sonoma, CA 95476

Typical Job Cost

$150,000 - 3,000,000

License Number



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