The Zaha Hadid residences, an intrinsic element of the redevelopment project for the former trade fair district of Milan, include seven typologically consistent buildings designed to merge into a continuous profile created inside two buildable areas. The roof contour of the buildings presents an unbroken sinuous line that characterizes the entire complex. The 30,000 sqm (323,000 sq ft) glass façades and both composite and wood paneling of the buildings have been designed in ‘relief’ to make room for a wide range of indoor and outdoor spaces. Picking up the sinuous progress of the roofing, the curved line of balconies defines the movement of the façade, which echoes the surrounding landscape. The ground floor displays large full-height entrances to the various buildings. These impressive doorways transversally dissect the architectural profile, directing the eyes of pedestrians and conveying a strong impression of a visual embrace that includes the park. Though morphological conditions have been extensively considered for the ground floor and foundations, the project is formally dominated by the urban horizon, namely the roofing contour, whose curved shapes enhance all attics located on the topmost floor with large roof terraces. The roofing profile is a key feature of the project, both because the residential complex will mostly be visible from the topmost floors of the three surrounding skyscrapers, and because the progress of the roofing outline of the building complex can create a rich and highly dynamic living landscape.