The Basso Sangro Trigno area in Abruzzo is one of the 72 pilot areas identified by the National Strategy for Inner Areas, a national policy introduced in 2014 aimed at reducing social, economic, and demographic disparities between urban centers and the more marginal regions of the country. The out-migration towards urban centers and the aging population have had significant repercussions on both the quality and availability of services, leading to increased management costs, particularly in key sectors such as education, healthcare, and mobility. However, the progressive depopulation of these areas has also deeply impacted the surrounding landscapes - both natural and built. Nevertheless, the regeneration of these territories through the reuse of existing heritage can represent a vital opportunity for their revitalization. Although often underestimated, neglected, or abandoned, heritage remains a fundamental resource for the sustainable development of these territories. The concept of reuse emerges as an approach that preserves the identity and uniqueness of places while counteracting urban sprawl and fostering local community involvement in heritage management practices. This aligns with the principles outlined in the United Nations’ Global Agenda for Sustainable Development. This paper analyzes territorial regeneration models applicable to inner areas, with a focus on the case study of Basso Sangro Trigno. In this context, strategies are proposed based on the reuse of abandoned assets and the strengthening of community networks, seen as key actors in the shared management of recovered resources, with the aim of returning them to the public good.