So "consumer credit" for land is not a problem.
The bank only wants a reason for why the money is being borrowed, and since for real estate, land, they usually grant a "land charge secured loan," they would recommend real estate financing here.
But now it depends on your creditworthiness and how quickly you repay the loan? If it is until the construction, meaning when you want to do real estate financing, is done, I would actually recommend consumer credit here, because it has advantages:
- special repayments at any time completely (partly free of charge (depends on the bank), otherwise 1% of the remaining amount, thus often cheaper than prepayment penalties in real estate financing)
- little effort
- no land charges (no further notary/court costs)
- probably only marginally more expensive than bridge financing/variable loan (if you want to build faster, little dependency on the bank)
therefore ;)
PS. maybe you have bought something from the €50,000 in the past, for example a car, then that serves as a reason... you are basically taking the money out of past consumption, replacing it with the consumer credit, and pushing the money into the land ;)