At least he got one at all – I remind you of the debts
The saleswoman made him a financing proposal. That is still free of any acceptance/examination by BHW. The lady only sees her 1.3% commission, solely from the financing structure (the broker receives a maximum of €3,965 according to the BHW product data sheet) and just sold a house
so, just spoke with the lady and clarified everything and almost as I suspected.
: Did the good lady tell you how much you have to pay from the 15th year onward (assuming you then make use of the BHW loan)?
On my scratch paper it says about €1820-1920 per month including further servicing of the KfW loan.
And did the lady tell you that the building savings contract product has a nominal interest rate of 2.35% (the effective annual interest rate is however 2.51% – 3.08%) (according to the product data sheet). Often a RLV is mandatory (this is then included in the effective interest rate)
On the other hand, the total effective interest rate (i.e. interest of the "loan" in the first 15 years; combined with interest for the building savings loan for the last 15) for the two BHW ones is quite okay. 2.05% for the first, and 2.5% for the second (no guarantee)