Is our new building realistically financeable?

Oh sorry, I didn’t notice the switch between p.m. and p.a. OK so you mean if anything, start with as much equity as possible and a high rate, otherwise it’s too much or not feasible at all. Understood...

@ Tassimat Yes 2 cars but no loan, currently fully paid off.. I wrote they are used but still good. With 2 cars you obviously can't rule out that one breaks down, but currently it's green. The salaries are correct to within a hundred amount e.g. (5200 + something and 1300 + 28 or similar) I rounded down conservatively. Monthly costs except for bills for utilities vary a bit over the year but the big numbers are correct.

You have to take one path. Either with equity or a rate of around 2500€. I'm not saying it's impossible. Our income/rate ratio is similar, but 1900€ is not 2900€. Also, at the first payment, you are 7 years older than we were back then. That is quite significant.

If something goes wrong, we can still borrow together for a certain period. At 2500€, things quickly fall apart. I once read that +500€ payment makes 100k€ more loan possible. This seems to be confirmed here as well. As I said, if you want, it will work.

I have already understood the thing with the paid-off cars. Nevertheless, a number must go into the list. Buying cars every x years (used) costs you roughly 100€ per piece and per month. And that way the free budget quickly disappears ;)

40% rate is way too high. You still have to pay additional costs and build up reserves.

60% of 6700 is still over 4000€. Many families don’t even have that net income together and still live. From that you can easily pay the additional costs and also build up reserves if you live normally. I don’t see a problem with having a 2500€ rate now, and at that age I would definitely do it. Tendentially even more through various special repayments; collective agreements with 13th and 14th salaries are suitable for that. You can certainly take the risk and, if necessary, adjust your life accordingly. Then a used Skoda also gets you well from A to B; it doesn’t have to be a new BMW/Audi/Mercedes. You just have to consider whether you are willing to make compromises there. But I have one question about the basic setup. What is the plan for retirement? Do you want to stay in Germany or go back to your home country? If the plan is not to stay here, it’s also questionable whether it makes sense to shape your life towards a property that will just be sold when it’s paid off.