This study's goal is to present a dynamic portrait of the farm-buildings environment in Occitania (Southern France) in order to better identify the transitions underway in agri-food chains. To this end, we undertook a territorial diagnosis based on actor statements, using 28 semi-structured interviews across Occitania. This diagnosis was enriched by graphic modelling, which enabled the spatialization of the dynamics described. We show that the process of standardisation of farm buildings prevails in the majority of the territories studied. This phenomenon has intensified in recent years with the development of vast photovoltaic-roofed sheds, accentuating the farmland conversion and soil sealing. At the same time, in areas with strong environmental, landscape and heritage contexts, a ‘new adventure in farm buildings’ (2022 survey) is taking shape. It is primarily driven by local short food chains, which rely on self-construction, repurposing and refurbishment, the sharing of tools and equipment, and which favour the use and reuse of local resources. This study shows that farm-buildings dynamics crystallise many challenges confronting the reterritorialisation of agriculture and food production.