The city government of Dakar, Senegal, has a requirement to generate revenues for developing and maintaining city infrastructure and services. The legal framework for property taxation is already in place, but the city lacks resources to collect and maintain the information needed to calculate the tax due. Using very high resolution satellite data the land parcels and building extents (including heights) can be monitored through a combination of 3D image analysis and field data collection.
This project is designed to develop an operational system for creating and maintaining a parcel reference map, whose accuracy can be further improved through GPS-based field survey, and, mapping new buildings and changed building heights. This will provide the framework for field teams to collect and maintain an accurate database of property characteristics, thereby enabling tax calculations to be made in order to support sustainable and transparent revenue generation for the City.