On a remote ridge in the wine country above Paso Robles, this 9,000-square-foot “net-zero” residence was designed to maximize energy efficiency and fire resistivity. Walls were to be made of 12" thick self-consolidating white concrete, while the roof assembly would employ SIPs (structural insulated panels), mineral wool insulation, and a zinc roof. The spacious layout, based on the 4' module of concrete formwork, employs repeated modular elements in order to heighten efficiency during construction. A minimal material palette of concrete floors and walls, wood cabinetry elements and ceilings, metal roof and shade canopies, and dramatic glass walls would focus attention on the dramatic views to the north and south. This project was not realized due to difficulties in securing the desired site.