The topic of pinpointing Nature-Based Solutions (NBS) in the urban context has been cultivating interests lately from different scholars, urban planning practitioners and policymakers. [.] ; The 'Greening Cities: Shaping Cities' symposium was co-funded by the Department of Architecture and Urban Studies (DASTU), Politecnico di Milano, Milan, Italy, under the Grant number MPO0DOTA02 and the CLEVER Cities project. This project has received funding from the European Union's Horizon 2020 innovation action program under grant agreement no. 776604. The sole responsibility for the content of this publication lies with the authors. It does not necessarily represent the opinion of the European Union. Neither the EASME nor the European Commission are responsible for any use that may be made of the information contained herein
Data Availability Statement: The original contributions presented in the study are included in the article/Supplementary Material, further inquiries can be directed to the corresponding author. ; Over recent decades Urban Living Labs (ULLs) have become a common space for co-creation processes' experimentation, whereby new approaches for sustainable urban development are highly connected to support evidence-based policy generation. Europe seems a particular 'hotspot' for this approach whenever it comes to public policy and specifically planning for urban transition. Systemic changes related to urban governance and different public participatory mechanisms, as in the case of ULLs, demand a growing interest from the stakeholders and deliberation in decision-making mechanisms. In this research paper, we analyze co-creation pathways and different shared governance mechanisms in three ongoing European projects: CLEVER Cities, Sharing Cities, and SUNEX projects from a practice perspective. This comparative study investigates stakeholder engagement (1) scales, (2) mechanisms, (3) methodologies of engagement, and finally the co-creation pathway challenges and pitfalls. From the analyzed ULLs' experiences, we identified key principles that suggest relevant clues to enable the consolidation of a forthcoming ULL 2.0 model and related innovation pathways for co-creating urban planning policies. We lastly reflect on the enablers and catalysts of co-creation processes to inform shared urban governance as major takeaways from our research. ; Funding: CLEVER Cities project has received funding from the European Union's Horizon 2020 Innovation action programme under grant agreement no. 776604. Sharing Cities project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement no. 691895. SUNEX project has received funding from the JPI Urban Europe/Belmont Sustainable Urban Global Initiative under grant agreement no. 730254.
