Abstract:The study is related to the city of Rotterdam, investigated in relation to the spatial changes caused by the massive immigration that took place since the 1940s and of which contemporary spatial planning is taking place. The urban regeneration program, promoted by the Municipality of Rotterdam, provided for the reconnection of the district to the urban dynamics of the city and the improvement of public spaces and private accommodation to encourage a process of social gentrification. The social challenges that characterize contemporary cities, especially caused by the violent immigration, have defined a new urban paradigm and new forms of collaboration; as urban planners, we must continue to promote the formation of inclusive, multi-faceted and multitasking cities that are able to capture the diversity of sociality that inhabits the strategic character that makes them different and unique and to experiment welfare and social governance models that allow the shared experience within the urban analyzed contexts; only by making the immigrants protagonists of sociality and of urban civilization can we build stainless cities that resist to climate change and above all to social changes.