[e_d_e_v]

> the lenders will only lend up to 80% of the value of the house (an ordinary bank loan must be used for the remaining fraction)

From olau's explanation, it seems that there is enough money flowing, that more than 80% can be financed (in some way) even if it is not in a single or collateral-backed loan.

[olau]

Indeed.

I think the situation currently is that you need 5% in downpayment yourself, then the bank can supply the 15% (at a much higher, individual rate) and the real-estate lender will provide the most secure 80%.