The house is located on the North side of Mummy Mountain in the Town of Paradise Valley with sweeping 270º views to the north and rocky hillside landscape views to the South. The steep terrain of the site required a terraced building approach. The house traverses the site like a hillside path winding down the hill ending in the driveway surface. The folded plane of the structure forms a quiet continuous line in contrast to the multi-roofed stepped house typical of hillside development. This single continuous surface transforms as it moves from driveway to wall to roof to garden to deck to wall to roof to canopy. The shifted fold ties the various rooms of the house together creating decks and outdoor spaces that double the surface of the site. To amplify the ambiguity of the wall/roof/ground the surface of the ribboned facade is clad in a custom-fluted metal skin that gives the facade a three-dimensional volume similar to that of a saguaro cactus. This continuous surface becomes one with the landscape disguising the 9500 sq. ft. of livable space.