As part of the application for a geothermal exploration permit in the Ede region (The Netherlands) a geological assessment study was conducted. The geothermal heat shall be used to feed the existing heat network. Major challenges were the interpretation of sparse vintage 2D seismic data in the region and finding a suitable drilling site in an urbanized environment outside the nearby Hoge Veluwe nature reserve. Data used included well data from two wells, gravity and a collection of 2D seismic lines. The workflow involves complete well velocity and density log upgrading, followed by seismic reprocessing, gravity and seismic interpretation and geothermal prospectivity estimation. An attractive reservoir has been found at ~2,5km depth, the Slochteren Sandstone formation, which is a well-known Permian reservoir rock formation. Diffraction imaging on one of the seismic lines demonstrated the presence of fractures that improves the prospectivity of the geothermal reservoir. The permit has been granted and follow-up work is planned.