8. Sky Garden, Bel Air, California — $60 Million
Sometimes all you need is a really good concept (and some equally good renderings). That was the pitch for developer Viewpoint Collection, who presented a 21,000-square-foot home by South African design firm SAOTA—and sold it. The home is partially built, so there’s some evidence that the glitzy renderings will come to life as advertised, and the location on top of Bel Air does provide some pretty stellar views. The final product will also include a separate guest house with its own private deck and pool; a larger, infinity-edge pool; an indoor wellness center with a gym, sauna, steam room and hot and cold plunge pools; and not one, not two, but four kitchens.