Super! Thank you very much for the information. May I ask what you paid for the basement? I know, you probably can’t really compare it, since we currently don’t know if we have to build with a “weiße Wanne,” but a little indicator wouldn’t be bad.
Regarding photovoltaics, I’ll start searching online then :)
Actually, that’s very very hard to say, since we always knew that we would ONLY build with a basement :D
With the general contractor, unfortunately you don’t get separate prices for each individual trade, but buy at a total price.
We originally inquired once, but I don’t remember exactly. The basement was somewhere around 60k (including “weiße Wanne”). The excavation (construction-side service) of course comes on top of that.