Perched atop a remote hilltop in wine country, and built of concrete, steel and wood, this extraordinary residence showcases the potential of each material for residential construction. The board formed concrete anchor element of the fireplace and pilasters contrasts with the lightness of the glass walls and clerestories. The superior spanning ability of steel allows for the floating plane above the crisp and refiened glass clerestory and walled enclosure.  Corten steel panels provide a deep earthy tone that protects the wood structure from wildfiire ignition, and provide the compound with a sense of ageless presence.  Slender steel pipe columns gracefully express their load-carrying function. The formwork is especially critical when the concrete will be exposed. Careful detailing of reinforcing steel is of the utmost importance to ensure reliable structural performance, as well as to minimize cracking. This is true for the foundations and slabs as well as the walls. The building is very well tied into and integrated with the hilltop, and the structure frames spectacular views to the surrounding mountains.