Designed by Seattle-based Woollen Studio and built by Park City, UT-based EcoSteel, the Cusabo Island home is a prefab wonder. Engineered to exceed FEMA flood zone code requirements, with helical foundations, a steel a number of balconies, two bedrooms There is a perforated metal screen that wraps the balconies that creates another layer All of that has to be prefabricated precisely.” The