Urban Living Labs (ULL) have become a common way to address wicked design challenges within the future mobility, and smart city context. The move toward ULL is part of a paradigm shift away from focusing purely on the IT-artifact, innovation, and user-centeredness toward focusing on the urban context and the construction of a place as a social context rather than implementation of a product or service in isolation. This shift requires diverse sets of stakeholders with different backgrounds to come together to address wicked design challenges collaboratively tied to specific urban contexts. However, the change toward ULLs also brings unique qualities to collaborations. For example, it is often hard to generalize or transfer findings from one ULL to another. In addition, it requires new modes of thinking and acting concerning the value of bottomup approaches anchored in context. Therefore, a core challenge for impactful work in an ULL, is to find ways to retain stakeholders’ local engagements and ways of doing collaborative design beyond the ULL project to create ripple effects. This thesis tweaks this challenge into a question that aims at investigating what a locally contextualized ULL set-up means for the involved stakeholders from a participatory perspective by asking: How can we understand engagement in ULL co-design, and how can this engagement be retained beyond the Living Lab? The question was explored through a design ethnographic approach in a ULL, where citizens, city representatives, car manufacturers, and representatives from public transport worked together to explore future mobility services. The research question is addressed through a description of how stakeholder engagement played out in the ULL along with an analysis of the dynamics of co-design as a co-appropriation process within the ULL, which enabled stakeholders to engage in a social context across sectors and disciplines to co-learn ways of appropriating findings from the ULL as an explorative way of working. Co-appropriation is described as a process moving from acclimatization towards cogitation in co-design, with patching as an activity that supports the process. The thesis also elaborates on how findings from a ULL can be retained and scaled beyond the Living Lab through transformation games, as an example of a patching activity.

This thesis will explore the possible obstacles among Region Stockholm municipalities in promoting adolescents’ mental health and well-being through experimental governance. The thesis will examine the municipal and non-municipal points of view on specifically promoting adolescents’ mental health and well-being through experimental governance in the Swedish context with the use of urban sustainability transitions and transition management frameworks. The urban sustainability transitions will help us understand the role of cities in creating new modes of urban governing processes. In addition, the use of a transition management framework will help us to understand the importance of shifting from traditional management approaches by rather placing greater focus on innovative and design-oriented methods. This approach highlights the importance of learning by doing process rather than a reaching specific destination. In addition, I will use a qualitative research design that uses the methods of semi- structured interviews. The empirical findings are analysed with the help of thematic analysis through the theoretical frameworks and concepts. It has been demonstrated an observable slow- paced adoption of experimental governance, insufficient specific promotion of adolescents’ mental health and well-being, and distant relationship between experimental governance and promotion specifically adolescents’ mental health and well-being in the urban planning process.