Construction costs are currently skyrocketing

That's something everyone has to decide for themselves, it's also a matter of preference.

Simply do it yourself. You don't need an architect or a [GU]. It's some work, but saves you easily 50 to 100k. Then lay floors, paint, build walls, etc. Do it yourself and save another 50k. Then it could work. You just need to have time or very little for 2 years.

Of course, it also depends on the architect. But with the general contractor, the goal is always to find the solution that is accepted with the least effort or cost. Not the best solution that fits the budget.

Sure. We have arrived once again in your black-and-white world, where an architect is basically the dear grandfather who even comes to the construction site on Sundays to air the place... and the general contractor is the greedy profiteer who can never make enough margin, with his site manager of course the accomplice.

You built with an architect, right? ;)

So much delusion... what do you actually do for a living?

You built with the architect, right? ;)

Nope. With the general contractor. And among other things, I’m having trouble because of stuff like this. "We’ve always done it this way," but according to the expert, that’s always been wrong. And of course, we’re the first ones to complain about it. But I don’t have to discuss this at length here. And afterwards, fixing improper execution ends up as an additional request on the list... Where you read that the architect handles ventilation is beyond me. It’s about the fact that the architect and construction manager are on the client’s side. With the general contractor, that is usually not the case. Btw ... I met someone earlier in the sauna who works at Schwörerhaus. New orders are rather scarce, so they’re now only pushing orders ahead for 1.5 years...

The architect is not on the client’s side, is he? If he has burned bridges with the 4th craft company of a guild in the region, then he can close his office and move somewhere no one knows him yet ;) Then at best he will only get overpriced defense offers because everyone knows "He complains about everything, not worth it."

When I look at the bill above... 2,900 EUR/m² with tiles, parquet... alone interior doors for 10k (I calculate 3,000 EUR for 10 doors as own work...)

Where do the 3,500 EUR/m² come from that are always mentioned here?

... I met someone earlier in the sauna who works at Schwörerhaus. New orders are rather scarce, so they are now just pushing orders ahead for 1.5 years...

What does "vor sich her schieben" mean?