How long is the fixed interest period?

So, our minimum rate would not be 1684, but about 1200 euros including kfw. Of course, we can currently either increase the rate or pay the rest via special repayment. The minimum rate is based on one salary, currently it is certainly double that.

Yes, that's how much you earn with shifts. Overtime is simply not paid and for a night shift I get 25 euros extra ^^ :/ You are certainly not paid according to your performance, but what can I do. The studies were just too long ^^

Our plot of land is not very expensive, about 50 TEUR. The expensive part will be the earthworks on the slope. We will pay for the plot, most of the earthworks and construction ancillary costs with our own capital.

So, our minimum installment would not be 1684, but about 1200 euros including KfW. Of course, we can currently either increase the installment or pay the rest via special repayment. The minimum installment is based on one salary, currently surely double is possible.

So again: You only reach the remaining debt of about 50,000 euros if you pay 1200 euros monthly into your bank loan and 484 euros into the KfW loan. If you repay 1200 euros including KfW (i.e. 714 euros into the bank loan), you will not reach this remaining debt.

So again: You only reach the remaining debt of about €50,000 if you pay €1,200 monthly into your bank loan and €484 into the KfW loan. If you pay off €1,200 including the KfW (i.e. €714 into the bank loan), you won’t reach this remaining debt.

You can fully repay the KfW loan after 10 years with the balance from the building savings contract. Then the rate for 10 years would be about €200 and thus €30,000 remaining debt paid off with the building savings contract. That leaves €1,000 for the first 10 years and €1,200 for the remaining 5 years. On average about €1,070 over 15 years, and that would result in a remaining debt of €55,000. If you calculate it exactly, maybe even around €50,000 ;) How do you calculate that? By the way, the interest seems quite high to me (I would guess 1.5%). Ask Interhyp what they can offer you.

The KfW has only today reduced the condition for the Kfw 70 house and without full repayment to 1%.

If I calculate now:

Component KfW:
10 years at an interest rate of 1%, monthly annuity 240.88 = remaining debt after 10 years: 27,496.65 euros (source: KfW repayment calculator)
10 years full repayment at an interest rate of 1%, monthly annuity 484.30 = remaining debt after 10 years: 0 euros (source: KfW repayment calculator)

Component bank loan
15 years at an interest rate of 1.87, monthly annuity 1,200 euros over the entire term = remaining debt after 15 years 25,813 euros (source: Excel calculation on an annual basis)
15 years at an interest rate of 1.87, monthly annuity 1,000 euros over 10 years and 1,200 euros for the last 5 years = remaining debt after 15 years 54,725 euros (source: Excel calculation on an annual basis)
15 years at an interest rate of 1.87, monthly annuity 800 euros over 10 years and 1,200 euros for the last 5 years = remaining debt after 15 years 83,638 euros (source: Excel calculation on an annual basis)

You can basically put together the combinations yourself.

Edit: KfW naturally has 1 year of repayment-free time. For the bank loan, I have now calculated with immediate repayment start, which I would not do. The remaining debt then naturally increases accordingly.

Thank you very much for your calculations! Unfortunately, I am obviously not a professional and have to ask my boyfriend to recalculate everything precisely. Jochen, I roughly remembered it the way you calculated. We have KFW55, not 70 - the interest rate is 1%. Alternatively, one could go for 1.25% over 20 years. What I have also factored in are the 30TEUR from my boyfriend’s building savings contracts. If we end up with about 80,000 remaining debt after 15 years - 30TEUR = about 50,000 remaining. But that is actually only the worst case - with two salaries and no children, we will be able to manage at least 1,000 euros per person per month. My plan was to pay off quite a bit in the next 5 years. The Sparda offer seems to be somewhat worse in terms of the rate than your offers. However, we cannot manage 40% equity, only 25-30%. Also, the prepayment and installment adjustment surely cost some interest rate. I fear, however, that a too rigid loan does not make sense, as many eventualities are still pending.

With KFW 55 you get the loan at 0.75% starting today. KfW 70 regardless of the term 1.00%.

You should make sure that you can either change the repayment rate or agree on a correspondingly high special repayment option.