ACR+ has recently participated in on a full day event organised by Circular Buildings Coalition, Arup, Ellen MacActhur Foundation and Metabolic in the framework of the World Circular Economy Forum. The event focused on different ways to integrate circular economy principles in the built environment. During the first session of the day, the potential of regenerative design as a way to reconnect with nature and move beyond Net Zero was highlighted. Public authorities and local communities are key here, as they can take the charge in constructing more circular, green, fair and accessible built environment. The second session focused on business cases for a circular building sector highlighted the importance of breaking the silos, creating a strong collaboration with the key stakeholders, and local and regional authorities must be included in the dialogue. The third session was hosted by the Circular Building Coalition, which presented Four circular building pathways towards 2050: build efficiently, build with the right materials, build for long-term use, and build nothing. This toolkit presents 9 interventions related to the four pathways that could support, together with the implementation of the decarbonisation efforts, the reduction of 84% of the environmental impact of the construction sector. For a real success, a key role is played by sufficiency measures. 28 actions are presented in the report, within which 10 business solutions have been supported for 6 months in order to implement the Blueprint Projects as circular business models on the market. The event was closed by a call for a translation of holistic change in practical actions by Janez Potočnik and Jocelyn Bleriot (Ellen MacArthur Foundation).