The Planning Tool Mosaic as a Tool for Sustainable Land Management. Keys Point for a National Regulatory Framework

The issue of land take has now become part of the objectives of international and European policies. At the international level, the 2030 Agenda aims to strengthen inclusive and sustainable urbanization by 2030. The European Union in the 7th Environmental Action Programme calls for progress towards «zero net land take» by 2050. Even if the proposal for a European Land Use Directive collapsed in 2016, there is still a strong need to standardize the regulatory framework that is currently highly fragmented at all institutional levels. The intervention in this phenomenon requires the availability of instruments that, on a sufficiently large scale, take account of multiple factors (environmental, economic, demographic…) and at the same time have a degree of detail and cogency that directly affect the transformation of the territory. One possible tool is the PTM (Planning Tool Mosaic). The mosaicking of the municipal plans, based on the use of common definitions and unified legends, allows having a harmonious and unique framework of local planning that, in short, is the one that regulates soil transformations in Italy. Although some regions have instruments of this nature, the national framework is profoundly varied due to the multiplicity of regulatory sources to which individual municipalities belong. The aim of this study is to analyze the regulatory framework at the regional level for the development of spatial planning, taking into account both the logical and, where available, the technical components. Their analysis aims to highlight the strengths and weaknesses that characterize the multiform regional rules and identify the standards to which they should adhere.