The annoying topic - Is the construction project affordable?

In my opinion, that is too generalized. The 500€/100k may be a good calculation approach, but in the detailed and developed reality, it looks a bit different. You can also finance 450k with 1700 Euro. And no, that is not calculated with 1% repayment. And if I want a proper 4-room apartment in MUC, for example, I also comfortably pay that in rent. Of course, it is self-explanatory that equity is worth its weight in gold, but I believe there are situations or constellations where priorities shift.

Best regards

It may well be that it shifts. But I'll do your calculation (with a €450,000 loan). If you do it properly, you should be finished in 30 years. That means with that amount and a repayment per month of €1,708.65, that is 2.36% repayment. Sounds good at first. Then the interest rate must only be at 2.20%. Remaining debt after 10 years: ~€344,500. After 35 years the interest rate can be at 2.90% with 1.65% initial repayment. With that loan volume and almost no equity, that’s also a rather unlikely interest rate. Remaining debt after 10 years: ~€373,600. And that only works if the respective interest rate holds over the entire term. Even after 15 years it would still be almost €322,000. Have fun with the risk. The €500 per €100,000 loan is a guideline, and a good one, at least if you want to retire debt-free. No additional housing costs have been paid or reserves built up yet. As I said, I don’t want to talk anyone out of anything. But if someone asks for opinions that reveal reality, they get it from me. What he/she then makes of it is none of my business. You can also filter the answers for yourself into: pick out the ones you want to hear and jump into the adventure without looking left or right. As I said, the income is great, but I see it as a whole, and equity belongs to me, like the Sparkasse guy said. It may not have to be 20 or 25 percent equity but the incidental costs into a moderate buffer should be there. Or simply don’t reach for the stars and reduce the budget. And I’ll say it again: calculating with money that doesn’t yet exist is a bad idea.

Yes, of course I assume that with a high income one is disciplined enough to properly reduce the outstanding debt. The only problem is that everyone talks about special repayments very enthusiastically at the beginning, but then probably very few actually do it. Otherwise, your post can be left as it is. Gather constructive criticism and pick out the most sensible advice. Even if you might have meant it a bit more ironically ;)

Well, in the excitement, people often prefer the statements they want to hear.

But everyone should decide for themselves.
We have all gone through phases of euphoria.

It is also difficult. You pursue your dream, hear different things from everyone, and many share their experiences.
In the end, though, you have to make the experience yourself, and whether it ends in failure or not, you become richer for that experience.

We ourselves have made several attempts and in the beginning, we also had to admit that things don’t always go the way you imagine. And if I have learned one thing, it is the fact that such an undertaking should be very well considered :)

If you go to a store and spend a few hundred euros more than you intended, the problem is solved with the next paycheck. With a house, it’s a bit different. ;)

Maybe you should also just "scale back" a bit ... smaller plot of land (even if it's cheap), smaller house or cheaper construction method (e.g. no expensive prefab house provider - 300K euros and then only semi-finished is quite a figure), postpone garage and carport for now ... .

If you roughly assume costs of around 350K euros, the whole thing becomes more feasible. And if you save properly, the situation looks different again.

So first of all, thank you very much for the answers. Contrary to emer's opinion, however, I have to say that we are neither counting on income nor on nonexistent income, let alone wanting to ignore certain responses. To be honest, I also don't know how one comes up with this almost reproachful line of thought. Currently, the feedback so far reads more like we should rather set aside one or two euros more. For example, when I think of our parents or our circle of acquaintances, none of them planned to build in their mid to late 30s. We are both still under 30 years old. Better to wait and fulfill the shared dream than to end up building a "compromise house" that we don't like from the start (square, practical, good) and will regret for decades to come. We have both always worked and studied part-time so far. I know that in my industry and especially in companies, significantly more income is possible and my girlfriend is also at about 3,000 euros net at around 50 years old through civil servant status. Maybe we should just be more patient and wait a little longer. As I said, the ideas might currently still be too big, although we both more or less know (assuming nothing very bad happens - fingers crossed) in which direction things are going for us in the future - also regarding income.

I hope that I am not misunderstood now and labeled as "arrogant." I just want to try to put my train of thought into words somehow. Beyond that, I hope for further feedback, which we would be very happy to receive. Every piece of advice and every opinion is very welcome and helps us move forward.