The Surveys, Cadastre and Geospatial Data Department is responsible for carrying out cadastral procedures, topographic works, and studies and topographic surveys of archaeological sites, monuments, and real estate owned by the Hellenic Organization of Cultural Resources Development (ODAP), elaborating and reviewing cadastral studies, cadastral diagrams and expropriation tables for the properties subject to expropriation, as well as developing, maintaining, managing and processing relevant geospatial data. The Department acts as the Managing Authority during the implementation of procurement contracts for the elaboration of topographic studies or the provision of other related scientific services.