Public rooms are located in a striking, glass-enclosed space. A butterfly roof echoes the slope of the hillside, while walls of glass take advantage of the natural light, river view, and ever-changing foliage of the wooded site.
The apex of the triangle seems to cantilever out over the hillside.
"I wanted the point of the living room to feel like it was floating in the trees," says Gurney. "Bringing the space right out over the downward slope of the lot contributes to this effect."
A rectangular volume that has been finished in vertical mahogany cladding is a remnant of the original structure, and houses the bedroom suites, home gym and study.
Gurney says he wanted to juxtapose the wide-open feeling of the public areas with a more inward-looking focus in the private rooms.
Inside, separate living spaces are again defined by use of texture and materials. Brazilian cherry floors throughout the open-plan public area contrast with the rough surface of a board-formed concrete fireplace and smooth glass walls.
The main living room and adjoining dining area are situated to take full advantage of the surrounding woodland and river views. The walls of glass are left bare to enhance the open feel.
The adjacent kitchen features a large island and a glass-topped bar for informal seating. Most of the kitchen cabinets are mahogany, but ash was chosen to highlight two sets of wall cupboards, and also for the flooring. Stainless steel, glass and granite surfaces echo the smooth texture of the glass walls.