Wastewater (shafts) is not included - what about rainwater? ... Pipes on the property to the house probably not either. I mean that 245 T€ including incidental building costs - that is costs for architects, earthworks, access roads, carport, risk reserve, building permit, structural engineering, floor coverings, painting, garden etc. pp. - seems very cheap and that no one gives things away for free. Therefore, better to question everything skeptically again - what is really included? What else will you be faced with? If the house has 110 m², it fits - if it is 160 m², it becomes strange - if it also has a basement, odd. Hence the remark. Not meant to be offensive.