Why don't construction prices go down?

Oops - based on GFA.
Then the calculation looks significantly different!

200 sqm GFA ==> somewhere around 145-160 sqm living area. With that, you break the 3,000€ mark (even without additional construction costs). We are always talking about pure living space here. So not a cheap offer, but still a "normally" expensive house.

That's why I'm asking, I think apples and oranges are often compared.

(...)
Those who sell today will lose money. The devaluation of the euro will accelerate even more.

Aha. I am currently in Sweden and happy about SEK/EUR at 11.5 to 1. A year ago it was almost 10 to 1.
Devaluation of the euro? I can’t see that. The euro-dollar parity is long gone too; you currently get just under 1.10 dollars for one euro.

You really have no idea what you’re talking about ;)

Aha. I am currently in Sweden and happy about SEK/EUR being 11.5 to 1. A year ago it was almost 10 to 1.
Devaluation of the Euro? I can't see that. Also, the parity of Euro to Dollar is long gone; for one Euro you currently get just under 1.10 Dollars.

You really have no idea what you're talking about ;)

Even though he says a lot of nonsense, he is not entirely wrong. Inflation devalues money, and the USA and the Dollar are no exceptions. I occasionally import car parts from the States, and these have increased by 30-50% in the last two years.

Take a look at the development of the Swiss Franc; you can really see the devaluation there.

To measure a currency, one needs a standard. By definition, that is the dollar.

Basically, the value of a currency can be measured in everything that can be bought with this currency. Immutable things are logically particularly meaningful, for example, gold.

Since the dollar is currently the standard by definition, it would be factually correct to say that gold has appreciated for a long time. Saying that the currency has depreciated against gold is logically the same.

200sqm GFA ==> somewhere around 145-160sqm living space. With that, you then break the 3,000€ (even without additional construction costs). We are always talking about pure living space here. So not a cheap offer, but still a "normally" expensive house.

Possibly I got mixed up with the terms GFA and NFA. I took the plan again and added up the NFA: 216.99 sqm including the terrace recessed on the ground floor and areas that are only partially calculated. With the offer price of 525k for the described performance, I come to 2419 euros per sqm NFA.

With basement and exterior facilities thus at least 3,500, rather 4,000 euros

Yes, and if I outfit the place with bookmatching marble and install Swissfineline from corner to corner, I might come to 10k+ per sqm. Or does the basement in your calculation only bring costs and no area? If you include the exterior facilities (and maybe a pool?) in the calculation, the comparison becomes completely unrealistic. I was talking about a house and not a garden.

Araknis, as already mentioned, you have to calculate using living space or, if you prefer, usable space to arrive at a value per square meter.