In the last few years, the increasing penetration of tourism in the everyday life of cities has started to produce conflicts, tensions, and paradoxes, like the rising cost of living, housing shortages, the congestion of public services and spaces, the casualisation of work, the transformation of place identities ... What resident communities in the most visited cities in Europe once considered a welcome source of wealth and employment, has started to be perceived as a major factor of disruption of community life and a vector of polarization and exclusion. SMARTDEST’s ambition is to contribute to an urban policy agenda that takes tourism mobilities seriously, at all levels of government. It thus sets on to study how urban inequalities are produced, lived, and coped with; and to bring out the social innovation potential from citizen engagement and collaboration, reconnecting and rescaling it to the formal policy domain for more resilient cities. Our research proceeds from the European scale, seeking for patterns of places facing similar problems, to the finer scale of eight case study cities, where we engage with local communities as informants, as well as policy and industry stakeholders as participants in the co-design of smart solutions. The results are shared with – and expected to influence future actions of – European stakeholders and concern communities.