The Local Area Distortion Factor (LADF): Resolving Property Area and Spatial Deviations from Geodetic Transformations in the Greek Cadastre

Dimitrios Ampatzidis, Dionysia Georgia Ch. Perperidou (), Aristotelis Vartholomaios, Nikolaos Demirtzoglou and Georgios Moschopoulos
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Dimitrios Ampatzidis: Department of Surveying and Geoinformatics Engineering, International Hellenic University, Terma Magnisias, 62124 Serres, Greece
Dionysia Georgia Ch. Perperidou: Department of Surveying and Geoinformatics Engineering, University of West Attica, Egaleo Park, Ag. Spyridonos Str., 12243 Athens, Greece
Aristotelis Vartholomaios: Department of Planning and Regional Development, University of Thessaly, Pedion Areos, 38334 Volos, Greece
Nikolaos Demirtzoglou: Department of Surveying and Geoinformatics Engineering, International Hellenic University, Terma Magnisias, 62124 Serres, Greece
Georgios Moschopoulos: Department of Surveying and Geoinformatics Engineering, International Hellenic University, Terma Magnisias, 62124 Serres, Greece

Land, 2025, vol. 14, issue 5, 1-22

Abstract: The Hellenic Cadastre, which is expected to be fully operational by the end of 2025, represents a major modernization step in Greece’s technical and legal documentation of property rights as the successor to the country’s land registry system. It will also constitute a land administration system, since it will encompass not only property rights but also restrictions and regulations in the context of RRR. A significant technical but also legal challenge inherent to this system pertains to the resolution of deviations between surfaces calculated prior to 1990 based on older geodetic reference systems and recalculated today using the current Greek Geodetic Reference System, GGRS87. Deviations that arise from geodetic transformations between older and modern projected reference systems are compounded by limitations inherent in historical surveying techniques and in the geodetic infrastructure that was available at the time. To address this issue, we introduce the Local Area Distortion Factor (LADF), a novel metric factor designed to adjust and harmonize property areas across different geodetic systems. This real-world case study offers a practical illustration of the application of LADF, demonstrating its capacity to enhance the precision of cadastral records while preserving interpretability for both experts and non-experts. LADF can also be used to improve land adjustment processes during the implementation of urban plans, property valuation, taxation, and notary acts that are in different reference systems.

Keywords: local area distortion factor; Cadastre; area calculation; area distortion geodetic datums; Greece (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2025
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