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About Us

BEST of HOUZZ 2013, 2014, 2015, 2016, 2018 Established in 1999, CAST architecture is a small firm specializing in modern design and sustainable practices in the Northwest. Our design work has been featured in many publications such as Dwell and Fine Homebuilding, and been recognized by AIA Seattle, AIA Washington, Historic Seattle, and the Northwest Ecobuilding Guild. CAST architecture brings broad expertise and an integrated team of consultants and contractors in a creative collaborative which fuels innovative design solutions for specific challenges, budget and site. Our work is vibrant, expressive, and yet very pragmatic. It is shaped by the site, the climate, the budget, but most of all, the desires of our clients. CAST began as a design/build firm, and our roots as a general contractor ground our work in the practical realities of putting a building together while demanding high craftsmanship on a budget.

Services Provided

Accessory Dwelling Units (ADUs), Architectural Design, Architectural Drawings, Building Design, Custom Homes, Energy-Efficient Homes, Floor Plans, Green Building, Home Additions, Home Extensions, Home Remodeling, House Plans, Kitchen Design, Kitchen Remodeling, Multigenerational Homes, New Home Construction, Prefab Houses, Project Management, Sustainable Design, Construction Drawings, 3D Home Design

Areas Served

Bainbridge Island, Ballard, Beacon Hill, Bellevue, Bothell, Clyde Hill, Edmonds, Fairmount Park, Hunts Point, Indianola, Kenmore, Kingsgate, Kirkland, Lake Forest Park, Lynnwood, Medina, Mercer Island, Mill Creek, Mountlake Terrace, Newcastle, North Beacon Hill, Rainier Valley, Redmond, Seattle, Shoreline, Woodinville, San Juan Islands, Methow Valley


See our website for a comprehensive list of awards and publications.


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Business Details

Business Name

CAST architecture

Phone Number

(206) 256-9886


115 c N.36th Street
Seattle, WA 98103

Typical Job Cost

$300,000 - 4 million


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