Operable glass walls were an obvious design choice for the Menlo Park residence. “The home blends elegant, modern design with green building strategies, using a careful system of proportioning and scale,” says founding principal and architect William Duff. “NanaWall doors function as 'opening walls' that define the living spaces without fully enclosing them, and establish flow between the different spaces and activities. Much of the design blurs the line between inside and out, and the NanaWalls in several locations accentuate this effect.”