Participatory design emerges as a proactive approach involving different stakeholders in design and decision-making processes, addressing diverse values and ensuring outcomes align with users’ needs. However, the inadequacy of engaging stakeholders with a spatial experience can result in uninformed and, consequently, unsuccessful design solutions in a built environment. This paper explores how metaverse tools can help enhance participatory design by providing new collaborative opportunities via networked 3D environments. A hybrid format (online and in situ) co-creation process was documented and analysed, targeting public space design in London, Hong Kong, and Lisbon. The participants collaborated to address a set of design requirements via a tailored metaverse space, following a six-step methodology (Tour, Discuss, Rate, Define, Action, and Show and Tell). The preliminary results indicated that non-immersive metaverse tools help strengthen spatial collaboration through user perspective simulations, introducing novel interaction possibilities within design processes. The technology’s still-existing technical limitations may be tackled with careful engagement design, iterative reviews, and participants’ feedback. The experience documented prompts a reflection on the role of architects in process design and mediating multi-stakeholder collaboration, contributing to more inclusive, intuitive, and informed co-creation.

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Metaverse,Participatory design,Public space,Virtual reality,Co-creation