Needs, Possibilities and Constraints to Develop a 3D Cadastral Registration System

The Land Registration Office (Cadastre) is mandatory to register the legal status of real estate objects.To be capable to do this, those objects (parcels) are digitally stored and maintained in a spatial information system.Until now the spatial information system used by the Dutch Cadastre to register the legal status of land is a two dimensional system.The juridical boundaries defining a parcel are maintained two dimensionally.Since there is a growing interest in using space below and above the surface, 3D information becomes increasingly important in registering today's world.In the Netherlands, a 2D system to register the legal status of real estate objects has appeared not to be sufficient anymore in all cases.Therefore, research is needed for a registration system, which is capable to take the juridical relevant information in the vertical dimension into account.At the Delft University of Technology, Department of Geodesy, research is done in collaboration with the Netherlands' Kadaster to study the 3D issue of cadastral registration in the Netherlands in a fundamental way.During this research the needs, possibilities and constraints to develop a 3D cadastral registration system are examined.The potentiality to register property in all land spaces (including under and above the surface) will make adjustment of the current 'flat' legislation possible, which is based on a division of land in 2D parcels.It also could start a process of changes in the registration of properties and characteristics of the Kadaster, concerning the vertical dimension.