1. Centre for Geoinformation Science, Department of Geography, Geoinformatics and Meteorology, University of Pretoria, Pretoria, South Africa
2. Ministerie van Binnenlandse Zaken en Koninkrijksrelaties, Den Haag, the Netherlands
3. Knowledge Centre Open Data, OTB Research for the Built Environment, Faculty of Architecture and the Built Environment, Delft University of Technology, Delft, the Netherlands
4. Kadaster, Apeldoorn, the Netherlands
5. Department of Urbanism, Delft University of Technology, Delft, the Netherlands