Tucked into a hillside site at the end of a cul-de-sac, this transformation of a 1930’s Deco house in San Francisco’s Cole Valley addresses a number of complicated site conditions. Roof forms vary to address views to the east and north and combine with well-placed skylights to allow sunlight into all areas of the house despite its hillside setting. A central stair core carved into the hill draws visitors to living spaces placed on the top floor to maximize access to light and views.