View Slideshow RO54 is a split-level modern home perched on a Bel-Air hilltop. But this is not what your mind probably conjures when you think of a split-level home. RO54 by Arshia Architects is a dreamy façade of floating glass with view of the Pacific Ocean, designed in layers to allow a gradual ascent to the top of the roof with little effort. Continue reading below Our Featured Videos Located in Los Angeles, California , this sustainable home features a central “void” using bridging stairs. This allows natural light to connect to the lowest levels of the building without wasting electricity. The basement is below grade with a courtyard between lower bedrooms to pull light all the way down into the basement level. Related: The first home in California to be Zero Carbon certified An automotive-inspired monocoque shell wraps around the body of the house in a sleek one-piece look that hugs the topography of the site.…