Following debates on urban policy-mobilities and -learning in Human Geographies the dissertation takes the example of Kigali's masterplan to show how aspirations of Rwandan and Singaporean policy-makers are transformed into concrete urban planning interactions. It provides a close analysis of the practices behind the mobilization of spatial planning expertise. The dissertation traces how planning approaches and regulations are mediated within the interaction between Singaporean and Rwandan actors and ultimately take shape in Kigali's urban space.