On the plot of the 1992 shut-down Renault factory in the centre of Paris, the cultural cluster 'Ile Seguin' emerges. Based on the urban planning by Jean Nouvel in 2009, the concept of the culture island foresees a variety of uses: Besides objects for musicals, contemporary music and art, cinema, multimedia pole, and further artistic institutions also retail, office-, commerce, and hospitality spaces are planned. For a building plot which is not included in Jean Nouvel's urban planning, the adaptive structure 'URBAN STAGE' has been developed. This object provides space for the Parisian dance theatre with its stage, its studios and further infrastructure. This structure links Jean Nouvel's 'Skycloud' on a level of +20,0m to street level (+-0,0m) and the level of the water front (-8,0m). Along to this vertical traffic junction, public spaces with various visual connections are generated as well as commerical facilities. The Parisian Boulevard has been transformed into verticality and extenses the city space by the circulation space and landscapes on the roof. 'URBAN STAGE': a permeable hybrid as a space for encounter, communication and low-treshold cultural offer; in the tension field of in- and outside, public and semi-public.