Abstract

In the Dutch cadastral registration a cadastral object (real-estate object) can be a complete parcel or a condominium right (apartment). The geometries of these legal objects are all based on a planar map which partitions the 2D space. In intensively used areas there is a tendency to use space above and under the surface, e.g. constructions on top of each other, infrastructure above/under the ground, increasing number of cables and pipes, apartments above shops/offices/other apartments. These physical 3D objects cannot be defined as cadastral objects in the cadastral map, which is based on 2D parcels, and cannot be used as a base for registration. From a juridical point of view the current registration is still sufficient in 3D situations. To assure that the Netherlands’ Kadaster is able to address future needs, a prototype of a Land Information System which can handle 3D spatial information is being developed at the Department of Geodesy in collaboration with the Netherlands’ Kadaster. This paper is written as part of the joint research of the Kadaster and the Department of Geodesy. Starting points are the needs of the Netherlands’ Kadaster on the one hand and the technical possibilities on the other hand. In this research a concept is developed in which cadastral needs and technical possibilities meet. The most feasible solution for this is to start with the current 2D cadastre and to extend this with an implementation for the registration of 3D situations. The realisation of this concept is also described in this paper.

Author Keywords: 3D cadastre; 3D data modelling; 3D registration; Geo-DBMSs