In keeping with the participatory turn, the current work discusses how a double-layered design approach can bring participatory design principles to the policy domain, illustrated by our experiences in a design project for the municipality of Delft, the Netherlands. More precisely, the approach described is double layered in nature, comprising of the Double Diamond design process, which aims to
provide structure to the process, while the inclusion of the Frame Innovation method, aims to provide inspiration. First, this elaborate method is motivated in the context of the municipality ofDelft, supported by current streams of literature on participatory design. Next, we present findings highlighting three pivotal moments experienced as a result of using this approach. By engaging
in a reflective practice, key learnings and insights gained from the implementation of the approach are presented, as well as conclusions
and recommendations for the field of design research withinparticipatory design.