Exterior, House Building Type, and Wood Siding Material Architects David Arkin and Anni Tilt found a balance between passive design strategies—plenty of natural light, maximized winter sun, shaded harsh summer rays, and cross-ventilated breezes—and the latest in green technologies in this Santa Cruz strawbale house. Photo by Gabriela Hasbun. See the house come together in a "bale-raising" gathering here.  Photo 1 of 8 in Green Zero-Energy Family Home in Santa Cruz