OpenHeritage aims at developing and testing an inclusive governance model and a supporting toolbox for the adaptive reuse of cultural heritage assets. It builds on the role of communities and the possibility of empowering them in the redevelopment process based on the concepts of heritage community and participatory culture. The project operates with an open definition of heritage, not limited to listed assets but also involving those buildings, complexes, and spaces that have a symbolic or practical significance for local or trans-local heritage communities. Inclusiveness also means the incorporation of a coalition of stakeholders into the re-use and maintenance process, the integration of resources involving new financial and economic models, and working with the local social, environmental, administrative, and economic context of the heritage sites. Territorial integration is an essential element: the planning process goes beyond a building or a site to contribute to the transformation of wider areas. OpenHeritage connects diverse cases across Europe, involving sixteen Observatory Cases (OCs), which are adaptive reuse projects that are studied and compared in-depth, and six Cooperative Heritage Labs (CHLs), on-going projects overseen by consortium partners, where it co-creates and tests its inclusive model. The cases are situated in a variety of urban, periurban, and natural environments, and include diverse heritage assets.