As highlighted by the UN 2030 Agenda, sustainable development is a complex and multidimensional issue that can be effectively implemented and reached at the local level. This implies the evaluation of differences and disparities between territories in order to define local priorities and support cohesion policy objectives. This need has been addressed by the Italian “National Strategy for Inner Areas”, which aims to support the growth of territories with a continuous economic and population decline. However, Inner Areas are identified by a set of indicators related to the low accessibility to Services of General Interest, neglecting other important factors that contribute to this condition. This paper proposes a critical analysis of this measurement and of the related “territorialization” of Inner Areas, by introducing a more comprehensive assessment model based on the concept of Territorial Capital (TC), which highlights a more nuanced understanding of complexities and diversities related to the potential development of a territory. In particular, the proposed model evaluates eight TC dimensions (human, social, cognitive, infrastructural, productive, relational, environmental and settlement capital), which cover a broad spectrum of Sustainable Development Goals (SDGs). In order to accurately demonstrate the differences between the results of the two evaluation methods, this paper presents the results of a case study application concerning all 377 municipalities, which compose the Autonomous Region of Sardinia (Italy). The findings of this study confirm the potential of an approach based on the Territorial Capital for place-based policymaking. TC, in fact, can become relevant for defining local priorities and supporting complex decisions, allowing governments to better design and tailor interventions for the effective and efficient management of available resources. Furthermore, these results pose new questions for future research developments in the field of sustainable and equitable development.

Urban regeneration (UR) is a multidimensional approach aimed at improving urban environments through sustainable and inclusive practices. This study examined the social impacts of a self-build architectural intervention conducted within a university campus in Cagliari, Italy. As part of broader UR strategies, the intervention introduced temporary physical transformations to three distinct sites, prioritizing community involvement and multidisciplinary collaboration. Behavioral observations were used as the primary method to capture pre- and post-intervention dynamics, focusing on variables such as sociality, dynamism, and restorative behaviors. The results indicated significant increases in social activities, restorative behaviors, and inclusivity, particularly at Site C, where improvements to design elements, such as added shading and movable seating, enhanced engagement and comfort. The intervention also led to a notable rise in the presence of observer-rated females, highlighting the potential of gender-sensitive design to promote equitable use of public spaces. However, a slight, non-significant decline in reading and studying activities was observed, raising questions about how to balance social and individual needs within shared environments. Despite limitations, including the specificity of the context and the short duration of data collection, this study underscored the transformative potential of targeted UR interventions to enhance social connection, individual well-being, and inclusivity in urban spaces.

This study investigates the impact of a self-built architectural intervention implemented in three areas, two intervention sites and one control site of a university campus, focusing on how such interventions can influence the use and care of open spaces. Surveys were administered before and after the intervention to a purposive sample of 54 habitual campus users, recruited through peer referrals and contacted via informal channels such as in-person interactions, phone calls, and shared student groups. The surveys were completed anonymously using Google Forms. Data were analyzed using mixed-effects models to evaluate changes over time, across sites, and time x site interaction. Results showed a significant increase over time in participants’ intention to care for the whole campus. Intentions to spend time in outdoor areas varied significantly across sites but did not change over time, and no time × site interaction was detected, indicating that observed changes were not confined to intervention sites. These findings highlight the potential of user-centered design interventions to enhance the quality, accessibility, and usability of open areas by providing empirical insights relevant to urban planning and the management of public spaces. Overall, this research suggests that self-build initiatives within university campuses can serve as scalable models for fostering sustainable urban environments, promoting citizen engagement, and improving urban well-being.