URBREATH vision is to develop, implement, demonstrate, validate and replicate a comprehensive, community participation and NBS-driven urban revitalisation, resilience and climate neutrality paradigm that will ultimately radically enhance the social interactions, inclusion, equitability and liveability in cities. Specifically, the aim of the URBREATH project is to implement hybrid/Natural Base Solutions putting at the heart of the decision-making process the communities within a city. Advanced techniques, particularly Local Digital Twins and AI, and social innovation will facilitate the achievement of its vision. The project will have four phases: 1. Inception, 2. Development, 3. Piloting, 4. Transition. The preliminary results of a single Phase are evaluated within the following Phase so to allow for feedback before releasing the final version. The Inception phase will define the methodology to be followed for the project development and will deliver the project functional and technical requirements. The second phase will release the URBREATH technical framework, consisting of tools to manage the whole data value chain and to support end-users to collaborate on the design and creation of NBS to be used in the city/district. It will be used to monitor and take decisions on the NBS to be implemented/deployed in the Piloting phase (evidence-based decision making), that involves 4 Front Runner Cities in 4 different climatic zones: Cluj-Napoca (RO - Continental), Leuven (BE – Atlantic), Madrid (ES – Mediterranean), and Tallin (EE – Boreal). During the Transition phase, all the information, results and lessons learnt from the previous steps will be collected and analysed to provide recommendations and foster replication activities and the uptake of project outputs at the end of its lifespan. To this aim, 5 Follower Cities are involved: Aarhus (DK), Athens (EL), Kajaani (FI), Parma (IT), Pilsen (CZ), linked to the Front Runners for climatic zone and/or dimension.