Construction costs are currently skyrocketing

I just want to say that buying and building since 2010 has been quite easy even with normal incomes. Since 2019, however, it has gone unchecked into a very difficult region for normal earners without a large inheritance (equity). Now with the increased interest rates, it becomes absurd.

Yes, and if you read that again, nothing else was claimed. You can argue about when to set the starting point. 2010 or 11 or 12 and for how long, but that also doesn't matter.

What I wanted to express is that maybe one should broaden the perspective a bit to consider whether the last 10 years were the "normal" or perhaps rather an outlier downwards. Viewed over 30 or 40 years, the last 10 years were also not normal. The advantage especially at the beginning of this period, as has already been described, was that low property prices (after the financial crisis etc.) met low interest rates, which was special and is now turning into the opposite. High prices meet rising interest rates.
In addition, there were regionally different developments. In southern Germany, people have been "accustomed" to high property prices for a long time. If you take Berlin/Brandenburg now, structural changes have certainly taken place there. You should take a look at what industries have settled (or are currently settling) there over the last 10 years. (Why do you think IBM and Tesla are not building their factories in BW??)
Market laws work...only for some it has a more extreme effect than for others.

I largely agree with you. In the long term, one should consider that Germans used to prefer renting much more statically. It is still ingrained in people’s minds today that if you buy or build something, you are then bound for life. The Scandinavians are years ahead of us not only in this regard.

I think that by the end of the year at the latest, we will see predictable prices again. At the moment, you hardly get any offers from GUs or some prices are astronomical. Materials have indeed increased, but not in the proportion that the surcharges are currently shaped. Stable prices, fair offers, craftsmen who understand their trade, less botching, and customer orientation. Is it Christmas already today :)

predictable prices

I can imagine that... but that still doesn't say anything about the amount ;)

I can imagine that... but that doesn’t say anything about the amount yet ;)

But better expensive and calculable than incalculable and expensive in the end. In the first case, you can pull the ripcord before the excavator rolls...

But better expensive and calculable than incalculable and expensive in the end. In the first case, you can pull the ripcord before the excavator rolls...

What I mean by calculable is that the current market prices are also passed on. Instead of a surcharge of 44k euros for 100sqm larch, then only 10k euros. If I buy the wood myself, I currently pay (as the maximum price right now) depending on the quality between 4k and 6k euros. In the case of windows, I have offers where I would get three complete sets of windows from a German window manufacturer at at least the same quality level. This runs through all positions. We are not talking about assembly prices here.

But that is exactly the point. If you agree on a fixed price today and in 3 months the craftsman needs the material... then he has to consider what risk he is taking during that time. And he can't just calculate based on today's prices. And what stops you from obtaining the wood yourself with the price difference and only contracting out the labor?