Living Room, Chair, Sofa, Bookcase, Storage, Table, Ceiling Lighting, and Concrete Floor Combining a prefab steel super-structure with concrete walls and insulated metal panels, Anthrazit House in Santa Barbara was designed by architects Pamela and Hector Magnus and built in collaboration with EcoSteel.“This wasn’t a traditional Santa Barbara site with large acreage,” Hector says. “It was small and steep.” Expansive windows on the second floor face a park.  Photo 2 of 5 in From the Ashes