Thank you first of all for the many responses. Unfortunately, we only came across the topic of building late through the children. As a result, of course, we haven't saved that much. I haven't spoken to the banks yet about what a 100% financing entails, but I think it is more expensive. Loans are currently available at 3%. It would of course also have to run, for example, through my mom. Moreover, I'm not sure if 100% is enough; it would rather be 110% or 120%.
I don't want to just dismiss the topic like that. It can't be that everything depends on this equity. Other families also build and have significantly less available. But I haven't spoken to the bank yet. But I'm just afraid they'll laugh at me with this equity.