COOP 15 began in 1992 as Lane Williams Architects. Jill Lewis joined the firm in 1997 and became a Principal in 2004. The firm opened a new studio at 15 McGraw Street on top of Queen Anne Hill in 2006.
Custom home design is the exclusive focus of COOP 15. Works include waterfront homes on Puget Sound, Lake Washington, Lake Sammamish, and Vashon Island; rural retreats in Sequim, Preston, and Salem, Oregon; new homes in Seattle, Yarrow Point, and Portland; major remodels in Mercer Island, Seattle, Bellevue, Olympia, and Austin, Texas.
