In Spain, the Cadastre and the Property Rights Registry are two separate institutions with differentiated mandates and competences, both working in the domain of land administration. The Spanish Law 13/2015 implements an effective coordination of transactions executed by both institutions. The Cadastre, registries and notaries have worked together to design a technologically advanced model of institutional interaction for this coordination purpose based in the INSPIRE GML of the Cadastral Parcel and the position of the Buildings.
Any modification of the physical characteristics of the cadastral parcels must be done taking as reference the Cadastral Cartography, that it is the unique official geographic representation of the cadastral parcels. Therefore the cadastre offers freely the INSPIRE GML of the parcels in several ways :WFS, ATOMS, embedded in the cadastral certificates or even through interactive tools in the Electronic Office of the Cadastre that provides, between other tools, cartographic viewer that allows access to all cadastral information and the parcel edition (INSPIRE GML) or a “Cadastral Editor” to use for the modification of the parcels.
The citizens and the public authorities that work in the territory have the duty to communicate to the Cadastre any change of the parcel (segregation, union, new construction, etc.. ) or when the cadastral cartography does not sufficiently reflect the physical reality, procedures have been defined for updating the graphic data of the parcel involved through the use of alternative georeferenced graphic representations. These alternative representations are expressed also in the INSPIRE GML Cadastral Parcel format and are validated in the system providing a graphic validation report with the INSPIRE GML of the new parcels.
In order to register a building in the Property Rights Registry, the georeferenced of its position is also required by the law 13/2015 and therefore we have done a step further, creating the mechanism to use for that the INSPIRE GML BU too.
The INSPIRE GML of the graphic situation of the cadastral parcel as certified by the Directorate General for Cadastre is embedded in the cadastral certification and the graphic validation report. The Directorate ensures the authenticity and integrity of its contents. Both products are electronic documents, signed using a secure 16-digit verification code (CSV). This code unequivocally identifies the document in the Directorate General for Cadastre’s catalogue. The exchange between the various stakeholders requires only the 16-digit barcodes. This avoids the need to physically exchange computer files, allows the visualisation of the new representation without GIS tools and enables the automated capture of its contents, thus preventing possible transcription errors.
The georeferencing of the parcels, expressed through the INSPIRE GML format of a cadastral parcel, is now widely used by all agents involved in property transactions in Spain. This is intended to give greater security to the data on the location, delimitation and surface area of the registered properties that are the subject of legal transactions. In this way we are enhancing interoperability between Directorate General for Cadastre and Property Rights Registry, simplifying administrative procedures and reducing costs.