Innovative euPOLIS urban planning methodology integrates nature-based solutions to enhance the health and well-being of citizens in four European cities! euPOLIS project, funded by the European Union’s Horizon 2020 program, is coordinated by the National Technical University of Athens NTUA, interconnecting the knowledge and experience of 28 partnering entities from all around the globe, including four European case cities: Piraeus, Belgrade, Lodz, and Gladsaxe. These cities pilot the citizen-wise and nature-based solutions of the euPOLIS innovative urban planning methodology, while Bogota, Palermo, Limassol and Trebinje follow, replicate, and demonstrate the advantages of our innovations via mentoring and coaching.