Only one credit component or several credit parts?

You only have a certain "concentration risk" when it comes to the follow-up financing.

That is more of an advantage for me. You can completely change the bank. And with already over 50% equity, the risk is not that high.

Our personal pain threshold was 10 years. Reason: In the first 2 years, you don't really manage to make special repayments. Since we still want to continue family planning, it's more like 3 years. In other words, we only have 7 years to reduce the loan beyond the usual repayments. That's not really much! Depending on the loan amount, hefty sums remain at the end of the 10 years. If a high interest rate then hits, it quickly breaks people's backs. We would be left with a remaining debt of around €280,000. Even a doubled interest rate would kill us.

You can calculate it exactly for yourself. Take the loan amount, calculate with a repayment rate x what remains after 10/15/20 years and then double the interest rate. Can you still afford the resulting monthly rate? What if it triples?

If you have high inflows of funds, I would at most consider choosing 2 terms and repaying an amount X earlier

I have never understood this argument. In principle, with such variants, one preferably repays the loan with the shorter term. However, this is usually the loan with the better conditions. Then, after 10/15 years, a payment falls away, and then I have a low payment, presumably with increased income. And then?

Can you still afford the resulting monthly installment? What if it triples?

Then you compare future interest rates with current salaries. You ignore that during times of high interest rates, inflation was also correspondingly high, and therefore salary increases must be taken into account. Ultimately, this is a comparison of apples and oranges.

We decided on a loan the day before yesterday. We will only have one component. We are financing €255,000. Fixed interest rate period of 20 years. Remaining debt after the fixed interest rate period expires: approximately €104,000. Provided we occasionally make special repayments (which we firmly expect, since the rate is calculated quite conservatively), we will even be well below €100,000.

Which remaining debt after the fixed interest rate period is still manageable even with significantly higher interest rates is quite individual and cannot be answered in general terms. Builders with a high income are not severely burdened by a significantly higher remaining debt – for us, however, it was important that after the fixed interest rate period, the remaining debt is around €100,000 or less, so that we can still comfortably service the loan even with a higher interest rate and the loan does not last indefinitely. Furthermore, a long fixed interest rate period was important to us – 10 years was therefore not an option for us, we briefly considered 15 years, but then decided on 20 years. A longer fixed interest rate period was too expensive for us.

The equity ratio is above 50%, in case that should be relevant.

What does the income look like or which annuity do you plan? With these key data, I certainly wouldn't be able to sleep from laughing ;-).

Assuming you have an interest rate of 1% and pay 1500 euros monthly ... boom, you’re done in 12 years. So I would fix the interest rate for 5 years and repay heavily. But I don't know your income ...