Agroecological transition requires research and actions at the scale of local territories, in which agricultural activities interact with the environment and natural resources depending on a territory’s spatial configuration. To support the agroecological transition, there is an urgent need to design and implement new spatial configurations. For this, local public authorities in France can be considered as an interesting level of governance, because of their skills in spatial planning and their interest in agriculture, to ensure the ecological transition of their territory. However, new methodological frameworks need to be developed to support the design of new spatial configurations of territories, by constructing representations of the territory that consider both agricultural and socio-environmental issues, and by involving agricultural and non-agricultural stakeholders so that both can project themselves into the new spatial configurations. We developed a new methodological framework at the interface between landscape agronomy and landscape architects’ approaches, and experimented with applying this framework in the Urban Community of Dunkirk (UCD), which was performing a spatial planning approach called a Landscape Plan and proposing to create an Agricultural Park. The results show that the implementation of the methodological framework enabled the construction of a spatially explicit and place-based representation including the spatial issues of farming systems. These representations enable a local authority’s stakeholders to enhance their knowledge of the agricultural issues and consider changes in the spatial configuration of the Agricultural Park. In the discussion, we question the adaptation of the framework in rural territory and highlight the limitations of local authorities as the level of governance at which to address the agroecological transition at the territorial scale.