"The long sides of the exterior are mostly solid wall, sparsely punctured with windows that frame the mountains from inside.
"Both ends are fully transparent, glazed with large full-height windows, making the space, like the view, seem to go on forever," she says.
The roof has a slight pitch to allow for run-off and, at its tallest point, almost reaches the maximum height limit for the area. Being so high up effectively allows the top floor of the house to be private.
"Ordinarily you would expect to see bedrooms and a family room on the upper level. Instead, we've placed the kitchen, living areas and master suite here," she says.
An internal stairwell, with a single staircase, extends the full height of the three-storey building. During the day, it is lit from above by a skylight and at night by cold cathode lights inside a translucent glass walkway on the third level. This passage connects to a powder room and provides an alternate route from the kitchen to the dining area.
A screen that drops down from the ceiling separates the kitchen from the dining area and is used when entertaining. In other areas on this level, steps serve to delineate rooms. The architect says they represent the undulations in the surrounding landscape, but also provide markers identifying room transitions.