Hello,
I don't understand this sentence.
Your example sounds like a general contractor contract, and since you are sparing with information, it is not fair to put such a fixed price out there and remain vague about exact key data.
Kind regards
I don't know what there is not to understand. Which key data would you like to know?
You yourself quickly slap down almost 200,000 EURO for a KfW 70 house, plus floor coverings, ancillary building costs, without a basement and without further information about the equipment.
I just wanted to show that it can be done differently, including a basement. And that in BaWü! Because it is supposedly always more expensive there than in northern federal states.
Of course, the plot of land, which was purchased privately, is added.