Kristianstads kommun (Sweden) is developing a workflow where planning projects are visualized in 3D where QGIS is a central part. The input data are existing 3D building from our 3DCityDB, a digital terrain model, point clouds, and other vector or raster data. Simple planned building can be modelled direct in QGIS, more complex ones could be imported for visualization in other ways. The result is simple but suitable 3D renderings of the proposed buildings and surroundings in QGIS 3D view or interactive 3D web pages with the Qgis2threejs plugin.