Recover ancillary construction costs retroactively from the construction loan?

Thank you Caspar for your answer, the costs have been taken into account in the overall calculation.

Alright then :) ...

At the beginning, we also advanced the first installment for the house. However, we then had to submit a confirmation to the bank from the BU that the €10,000 had indeed been transferred by us.

Regards, Yvonne

With us, it also worked smoothly - we initially used the equity, which is later intended for furniture, kitchen, etc., for the first two house installments.