At the mixed-use Greenfire Campus in the heart of Seattle’s Ballard neighborhood, Walsh Construction Co. embraced an opportunity to push its green building practices to new heights. Already a stalwart of sustainable construction—Walsh has built more than 50 LEED-certified buildings throughout Washington and Oregon—the Walsh team embarked on a “paperless challenge” with other partners on the Greenfire project, including architects, engineers, leasing agents and property managers.