Bank Lending Regulations

It says that so and so much % will be paid after completion of ...

A contract with incorrect conditions?

If you have stated the money for the kitchen as equity, you are out of luck and must use it up now. The kitchen will then be paid from the surplus. Your real estate agent should have told you that.

However, we stated that we have NO equity. Precisely for that reason, so that the bank cannot say that we should use equity. But they want us to pay the invoices from the house proceeds. Yet the money only comes after the handover of the house. And that will only happen once we have finished our house...*ächz*

So you have to provide bridge financing.

That sounds as if the whole structure is not suitable for the situation at all. What you need is bridge financing that is refinanced by the sale of the old property. Is the old property mentioned anywhere in the contract at all? I'll guess, no, and the conditions correspond to those of a full financing. If that is the case, the "advisor" has seriously failed in their profession.

I repeat my question: has the sale of your house already been notarized?

Best regards in brief