Lioni, a town in the province of Avellino in Campania's Irpinia area, has become a reference point in the debate over how planning can support inland areas facing depopulation. The discussion around its Municipal Urban Plan, the Piano Urbanistico Comunale or PUC, connects limits on soil consumption with wider questions about inter-municipal planning, services, infrastructure and employment.
The case is presented not as a completed success, but as a possible pattern: linking environmental protection, urban regeneration and policy for inland areas.
A plan built around the existing town
The central idea associated with the "Lioni model" is restraint. Rather than opening new residential expansions, planning is concentrated on the recovery of the existing building stock and on the protection of soil.
Reporting on the plan describes this orientation as consolidation, regeneration and reuse of what is already built, with a reduction of land designated as buildable and a direction toward zero net land take. In this reading, the question is not how much to expand, but how to make better use of the town that already exists.
Related directions associated with the plan include the valorisation of the mountain area, the Ofanto river park, forest management and measures to revitalise the town centre.
How the plan was prepared
The plan was developed by the Municipality of Lioni through its Technical Office with scientific support from the Department of Civil Engineering of the University of Salerno. A preliminary plan was acknowledged in 2020.
The regional planning record lists the Lioni PUC as adopted, while indicating that the currently in-force instrument is the General Regulatory Plan approved in 1990. The institutional site of the Municipality records the adoption of the planning regulation and the PUC in October 2023 and collects notices and documents concerning the planning process.
That sequence matters for readers following the story: preliminary work, adoption and publication of acts are documented, while the step beyond adoption is less clear in the sources available for this article.
Why urban planning alone is not enough
A central point in the debate is that the PUC, by itself, cannot resolve depopulation. It needs to be accompanied by services, infrastructure, investment and job opportunities.
This distinction is important. The plan can set conditions for soil protection and reuse of existing buildings, but decisions about whether people can continue to live and work in inland areas depend on broader public policies and economic prospects. Lioni is therefore discussed as a supporting condition for inland-area policy, not as a standalone solution.
The debate also links Lioni's choices to the need for planning beyond single municipal boundaries, reflecting the fact that services, infrastructure and work cross administrative lines.
Understanding the timeline
For readers unfamiliar with Italian municipal planning, the Lioni path illustrates how long the process can be. The move from an early-1990s regulatory plan to a preliminary plan in 2020 and then to adoption documents in 2023 spans more than three decades.
That duration helps explain why adoption is a significant administrative step, even when it does not yet answer the question of final approval or implementation. The Municipality's publication of acts and notices in 2023 provides the public record of adoption, while later stages remain to be verified in complete technical records.
Why Lioni matters for inland areas
Lioni's broader interest lies in the way it frames a local planning choice as a question for other inland municipalities. If containment of soil consumption and reuse of existing buildings can be combined with inter-municipal cooperation, services, infrastructure and employment policy, then planning becomes part of a wider strategy against population loss.
That framing does not claim that Lioni has reversed depopulation. It treats the town's planning process as a trace to follow and test elsewhere, with results still to be measured.
What remains uncertain
Several limits should be kept visible. The sources acquired for this article do not allow verification of the most recent state of final approval of the PUC beyond the adoption indicated in the available acts.
No updated data are available here to measure the plan's effects on population, unused housing, employment or actual soil consumption. Assessments of the effectiveness of the "Lioni model" against depopulation therefore remain prospective; they are not evidence of results already achieved.
Some design and regulatory details are reported through press coverage or contributions to the public discussion and would need to be checked against the complete technical documents of the PUC.
