Since the end of the 90s, to simplify the point, facing the major issue of climate change scenarios, a movement has called for new water management, going from a resistant and draining perspective (channelling and evacuating water as fast as possible) to a resilient perspective: accepting water on land and composing with it. As water management practices evolve, lines in design and planning fields are moving too. In the Netherlands, Denmark, China, Singapour, etc. new concepts are indeed emerging: resilient cities, porous cities, buffer cities, and sponge cities … these concepts present the important aspect of answering to new water management but also the main advantage to requalify the urban and territorial forms and functions at all scales to develop benefits related to water at scale. Cities are not only economic and/or cultural centres but they also start to provide regulative, purification, and productive functions. This conference aims at exposing these new horizons, categorizing the diverse levels of answers (architectural and technical, landscape, urban and territorial), and showing a broadcast of best practices.