Volume II-2/W1
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., II-2/W1, 101-110, 2013
https://doi.org/10.5194/isprsannals-II-2-W1-101-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., II-2/W1, 101-110, 2013
https://doi.org/10.5194/isprsannals-II-2-W1-101-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

  13 Sep 2013

13 Sep 2013

TOWARDS A REAL ESTATE REGISTRY 3D MODEL IN PORTUGAL: SOME ILLUSTRATIVE CASE STUDIES

J.-P. de Almeida3,2,1, C. Ellul3, and M. M. Rodrigues-de-Carvalho4 J.-P. de Almeida et al.
  • 1Geomatic Engineering Lab., Dept. of Mathematics, Faculty of Science & Technology, University of Coimbra, Apartado 3008, 3001-501 Coimbra, Portugal
  • 2Institute for Systems Engineering & Computers at Coimbra, Rua Antero de Quental 199, 3000-033 Coimbra, Portugal
  • 3Dept. of Civil, Environmental & Geomatic Engineering, University College London, Gower Street, London WC1E 6BT, UK
  • 4Coimbra City Council, Cadastre & Land Management Office, Pátio da Inquisição 7, 3000-221 Coimbra, Portugal

Keywords: 3D cadastral modelling, 3D property unit, 3D multipurpose cadastre

Abstract. The 3D concept emerged as a key concept within geoinformation science. 3D geoinformation has been proved to be feasible and its added value over 2D geoinformation is widely acknowledged by researchers from various fields. Even so, 3D concept merits still need to be exploited further and more specific applications and associate products are needed – such as within real estate cadastre, our ultimate field of interest. The growing densification of urban land use is consequently increasing situations of vertical stratification of ownership rights. Traditional 2D cadastral models are not able to fully handle spatial information on those rights in the third dimension. Thus, 3D cadastre has been attracting researchers to better register and spatially represent real world overlapping situations. A centralised distributed cadastral management system, implementing a 2D cadastral model, has been conceived by the national cadastral agency in Portugal: the so-called SiNErGIC. The authors seek to show with this paper that there is room though for further investigation on the suitability of a 3D modelling approach instead, which should not be confined only to topologicalgeometric representations but should also be extended in order to be able to incorporate the legal/administrative component. This paper intends to be the first step towards the design of a prototype of a 3D cadastral model capable of handling the overall multipurpose cadastral reality in Portugal; it focuses primarily on the clear identification of some case studies that may illustrate the pertinence of such an approach in the context of this country.