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 Citi...