Today, some modern residential buildings are musealized. The preservation of these buildings coincides with the preservation of a comprehensive design approach that concretized the 'Gesamtkunstwerk' in which, all parts of the work reflect the same spirit. In these museums, time has been interrupted and space has been frozen to give more space to emotions, like in an anthropological museum. In this, there is the importance of the restoration project. It is the result of the knowledge process, and it consists on the returns to the initial state of the work.The restoration of modern residences is the cause of the break with the concepts on which Italian restoration theory is based. But is not the break with tradition the basis of modern thinking?