The approach focused on the extension of a house on its backyard, demolishing all the existing construction with the exception of the main elevation that has been fully recovered. The rear façade was completely redesigned, where the spans metric is changed, a wide span was ripped open at the ground-floor level, and at the upper level, the bay spans were opened with a regular metric, aligned with three roof mansards. It is thus created a strong relationship between the inside and the outside. In the rear elevation, the spans detail, the prominent white metal plate which frames the openings and creates a three-dimensional effect on the façade’s surface thanks to the creation of slight shadows, should be highlighted. The intention was to design an elevation with clean and simple lines, which attributes sobriety to the garden area in contrast with the somewhat messy diversity of the surrounding patio’s atmosphere.