"In today's conditions, with the decline of architectural quality and the environmental destruction in the city scale, there is the urban chaos causing the fragmentation between the building, the urban tissue and the green. In the fragmented urban space, skipping the in-between is an inevitable result. In the search of a middleway, the enclosed garden as an architectural production in which the natural peculiarities are not neglected could now serve as a solution. When such defined polarities such as inside-outside, introverted-extraverted, centralizeddecentralized are forced to define new modes of spatial conceptions, the fragments of the contemporary urban landscape could completely disappear. For Aben and de Wit, "the landscape today is no longer the natural or rural counter form of the city, moreover diffusing into the city and being absorbed in a diffuse urban landscape."1 Therefore, a new set of relations between the city and its natural surrounding as expressed in the enclosed garden is now imminent. In this study, the enclosed garden as a spatial tool also empowers the author to critically analyze the Fondation Cartier, the Contemporary Art Center, which is an important Parisian element spatially and culturally. Jean Nouvel builds this significant building in 1994 on Raspail Boulevard 261, Paris."