This 800 square foot home for a mother and son has both privacy from and connection to the existing main house on its steeply sloping site. An adaptable storage area tucks into the hill to create a base on the slope, make the most of the living space, and allow for future expansion. The "public" upstairs connects to the existing home with a walk-out patio, while the "private" downstairs has its own driveway and entry. The open plan living area is positioned for views down the hillside. Light gathered through the stairwell illuminates both the up- and downstairs.