Is construction financing possible for an individual?

Thank you for the feedback! I still have a few questions regarding the following points:

That probably won’t matter, since you still need the higher financing at the beginning anyway. So rather adjust the budget downwards with the bank a bit and, for example, pay special requests or similar from ongoing income.

If possible, I would still like to request the ~320k from the bank and use the continuously accrued equity capital as reserves/security. Would the 320k still be realistic? Even with a direct bank with automatism like ING, for example? There are no negative entries in Schufa (no loans, liabilities, or anything else).

Either count with you as the borrower or only with your income.
P.S. If the girlfriend becomes the borrower, she should also be entered in the land register – but that will incur real estate transfer tax, unless you are married by then.

In that case, would the salary from August also be admissible if the financing is completed earlier?

Mentally, I was thinking of the former. But of course, it would still be registered in the land register (after marriage, possibly with a gift?). Would the rental thing also work? How would something like that work and what disadvantages does it have?

Hello, risk for both. For her: becoming a borrower without registration in the land register. And banks do that too, although it is morally questionable. She would be tying herself to a loan as a second borrower for the duration. If you separate, she has no right to continue living there. And she can no longer take out a loan herself. She would have to expect to be held liable if you cannot service the loan. For you, if she is in the land register. Scenario: newly married, separation. There is the gain in accrued gains, but unfortunately I don’t know anything about that. Maybe first get advice from a lawyer regarding the gift. "Gift" after a certain time "rent," which is used to pay off, I find fair. Later registration in the land register costs a bit at the notary again. This is really a matter of trust. As long as it goes well, you have lived nicely together in case of emergency. With the rent, I can imagine that it might work if you are married or have lived together for a long time and can prove income for years. Unfortunately, I have no idea how banks assess that.

I don't know if you can finance the amounts alone. In principle, it is possible alone. We have done it too. One is registered in the land register, one is the borrower. The other just had to prove that he has a sufficient income and is not a financial burden on the borrower.

If possible, I would still like to inquire about the ~320k with the bank and use the continuously further saved own capital as reserves/security. Would the 320k still be realistic? Even with a direct bank with automatism like ING, for example? There are no negative entries in the Schufa (no loans, liabilities or anything else).

If the plot works out. Just ask the relevant brokers.

In that case, would the salary from August also be countable if the financing is completed earlier?

Some banks say no then (not countable), since the job has not yet been started. But overall, banks have become more relaxed over the last 20 years, as job changes are now normal and an employee does not stay with one employer until retirement. Overall, it will definitely be rated at least positively.

Thank you all for the help! It doesn’t seem hopeless, which already makes me happy :)

Mentally, I was with the former.

I wouldn't do it as a partner. If I have to help pay off the loan, I should also be listed in the land register. That would be my only security since often something is never permanent. However, I would also leave (house and land register) if that’s what separation requires.

In that case, would the salary from August also be considered if the financing is completed beforehand?

The bank always considers the current state, not the future.

Try to take out the missing 300,000 on your own. Later (wedding, child) many things can be changed. Paying a bit more because of the land register or notary is just how it is and should not be decision-relevant.