Exterior, House Building Type, Metal Roof Material, Metal Siding Material, and Flat RoofLine Located in Orinda, California, a three-bedroom house by architect Greg Faulkner took its first aesthetic cue from a large oak tree on the site. Cor-Ten steel panels clad the exterior, while white oak offers a material counterpoint on the interior. A 12-foot-wide sliding pocket wall opens the living/dining area to a terrace with a Wave Chaise longue by Paola Lenti. The landscape design is by Thuilot Associates.  Best Photos from Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California