CC BY 4.0De Leo, DanielaAltamore, Sara2024-01-212024-01-212023978-908-28191-9-9https://hdl.handle.net/20.500.14235/1208Book of proceedings: 335th AESOP Annual Congress Integrated planning in a world of turbulence, Łódź, 11-15th July, 2023Based on longstanding research conducted in the Lazio Region about the implementation of two recent and innovative territorial policies, this contribution reflects on those findings by shedding light on the connection between administrative/not administrative boundaries and efficiency in the goals achievement. The analysis provides insights and prompts a reconsideration of the approaches taken in defining these new soft spaces for better addressing challenging territorial issues. Keywords:boundaries, variable perimeters, innovative territorial planning tools, soft spacesEnglishopenaccessConference object279-288