If you understand running operating costs by ancillary costs, yes. Additional construction costs are land transfer tax, notary, court, additional excavation costs on slopes, and where in Germany is it already completely flat except in Western Pomerania and Friesland, soil removal, construction electricity and water, permit fee, about 800,-, costs for connection to gas, water, electricity, driveway, terrace, painting, floor coverings, interior filling, and the small extras. Garage, for example, cross that out. The garden can also be kept small; in many cases, standard is enough, but it adds up. We calculate 40k ancillary costs for a purchased plot, whereby painters are in the family and I also know other people otherwise. Others here calculate 50.