Considering real estate and the fabric of the city through the prism of mobility and transitions makes it possible to match the immediate functions of everyday life to the challenges of the regeneration of territories as well as to the strategies for changing tertiary, road and infrastructural functions. This concordance of times allows the convergence of views between AREP, historical operator of mobility and laboratory of an advancing society and BNP Paribas Real Estate, major player in massive urban projects. Both share the vision of a city in connection with the world but rooted in its territory. This brochure identifies 9 issues for 2050 to which it responds with 9 strategies. Design and writing: AHA