This research explores the cultural sustainability in the urban development project called Embassy of Sharing in Malmö Hyllie; a future building complex with keywords of sustainability and sharing economy. The research’s focus was on the Department of Culture which has invested in the space to open a new public library, expand its centre for freedom of speech and create meeting spaces for youth. This research investigates the project group’s work towards planning their future operation and how their ideas relate to cultural sustainable development.  The result demonstrates that the Department of Culture does not generally work towards cultural sustainability but allows culture to be subsumed by social sustainability, using culture as a method to fulfil social work. Most informants emphasised citizen dialogue and participation, which are notions of social sustainability that come from internal work with social sustainable development. This result of direction was not surprising based on culture’s role in cultural policies and mainstream political research. However, the Department of Culture’s intended activities in their space at the Embassy of Sharing does not exclude the potential to achieve cultural sustainability. Concepts of place-shifting and participatory planning can be used to highlight how the Department of Culture’s methods can be re-evaluated towards being more inclusive, such as including citizens in earlier phases in the planning process, as well as re-grounding Hyllie from being only commercialised to a place with cultural access. The concept of spaces of possibility invites an entirely new creative framework for how the Department of Culture can establish its work more related to the cultural discourse, rather than doing social work.  Since the project is only in its planning phase there are no finished results to investigate. Instead, this study investigates the formation of cultural values in its movements. Thinking in terms of cultural sustainable development in the planning process of a project may strengthen the chances of achieving something valuable from the start. Further research will have to explore the use of the Department of Culture’s future operation and what role culture will play in the finalised building complex of the Embassy of Sharing.