Changes in land use were studied in 2 km wide peri-urban open spaces of seven small Hungarian towns as part of a RENATUR Interreg Europe (2019–2023) project. The aim of the project is to present best practices related to the sustainable and wise use of the peri-urban open spaces of small European towns. The rate and tendencies of conversion from one land use type to another were evaluated on the basis of a comparison of Corine Land Cover and Land Cover Change databases from 1990, 2000 and 2018. Land use changes in the study areas in different time periods were studied for which the Corine categories were aggregated. Subsequently, there were field verification surveys carried out between March and June of 2021. Most significant changes—due to the significant increase of built-up areas—were found in the case of the towns that were developed to form the suburbs of Debrecen, the core settlement of their region with a population of 200,000. In the case of settlements further away from the major city, the population is either stagnating or decreasing, and the size of built-up areas hardly increases. In the case of cities that are surrounded by high-quality chernozem soils with profitable agriculture, large-scale arable lands have become dominant in the border zones of the settlements, as the spatial extent of gardens, orchards and grasslands has decreased. Highly diverse and mosaic land use (dominated by small plots) is not characteristic anywhere.

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Today, the countries of the world have to face several global challenges with regard to the plans they have developed together. The protection of the natural values of our country and their sustainable use is receiving more and more attention in today’s society. In order to achieve the above, a change of perspective in social strategy built on knowledge and professional training is inevitable. An environmental strategy paradigm shift emphasizing the protection of biodiversity, resources, and landscape cultivation is also necessary. The need for documents providing a basis for the paradigm shift is indubitable; however, more efforts are needed to induce fundamental changes by plans detailed in the documents.The aim of this study is to review the current environmental protection initiatives in Hajdú-Bihar County and to assess the degree to which the relevant plans are harmonized and that the objectives outlined in the documents overlap.