Thank you! Yes, it will then (whenever the district and the municipality get their act together) show whether and how that fits on the property. As I said, with a basement then. We once went to a local construction company and they calculated about €75K for the basement and €530K for the house. But the basic components were included. Quite an expensive affair. They also said the small houses alone each cost €20K because they are more complex to build than normal ones.