Inspired by an innovative housing program in Kirkland, WA, in 2009 the City of Bainbridge Island adopted the Housing Design Demonstration Program (HDDP) to encourage affordable housing, a vibrant pedestrian oriented-downtown, and innovative green building design. The program offers a 1.5x density bonus to green-certified affordable housing projects. To-date more than 250 new homes have been green building certified, including the solar-powered Grow Community.