This house is located at the end of a cul-de-sac, on a promontory above the legendary Mulholland Drive, in Los Angeles, USA. It was built in 1961 and the intention of its renovation and extension was to preserve the architecture of this period. The project is by the firm Heusch Inc. The central volume has been expanded by building retaining walls on three sides of the garden area, thus creating space for a curved infinity pool that follows the contours of the topography. The surface of the water blends visually with distant cityscape of downtown Los Angeles, down below into the landscape. The construction of the swimming pool meant the demolition of the existing living room, to take full advantage of the panoramic views of the city, but the new layout also allowed the entire living area to open out on three sides, thus creating a continuous flow between indoors and outdoors, further accentuated by the type of flooring selected. The interior is organised according to open spaces, which offer transparency, natural light and sweeping landscapes.