This house can be understood essentially as a pair of distinct volumes that enclose the most important elements of the program and are joined at the center by a circulation block. The envelope of each of these volumes responds to orientation and privacy. The front volume, which faces the street to the south, is practically opaque. A large window masked by a metal screen sits on top of a bare concrete wall. The back volume, on the other hand, displays a larger degree of transparency on both floors. The top portion is articulated as a floating concrete frame that cantilevers well past the glass wall underneath, to shade the living spaces and an outdoor terrace on a stone platform. A series of wooden operable panels mounted on steel rails on the second level act as shutters that prevent sunlight from entering the master bedroom and, when open, provide a clear view of the back garden.