The Andersons designed a system of four-by-four-foot concrete modules, created from a reusable formwork of 2-by-12-foot boards that could be easily moved around the site. By using the units repeatedly, the architects saved on cost and materials as well as scaling the work to be manageable with one concrete truck and a two-person crew. The resulting facades are textured from the rough wooden planks.  Photo 7 of 18 in A Sonoma Prefab That Celebrates a Family’s Passion for Cooking