ᐅ Cost per cubic meter of enclosed space for the shell construction

Hello everyone,
I just spoke with the structural builder, and he quoted a price of 90 euros net per cubic meter of enclosed space in Baden-Württemberg.
What do you think about this price? Is it reasonable, or should one try to negotiate? Does anyone have experience with this?
Regards and thanks, MaJu

Shell construction with or without a roof?
With a roof, it is very affordable; without a roof, it is still reasonable, based on our contracts.
We paid about 100,000 (gross) for approximately 830 cubic meters including the roof.

Just out of curiosity, does that include the materials as well, or is it only the labor costs?

Yes, of course, ground slabs, basements, ground floor and attic, intermediate ceilings and roof fully enclosed.
Therefore, I find the $90 per cubic meter hard to believe, as we had already searched for quite some time before finding a supplier that was reasonable in terms of quality and price. Surely, companies like Heinz von Heiden or similar can offer lower prices than ours, but if you exclude the low-cost providers, ours was quite affordable (in our area).

Price refers to the shell construction without the roof, including 36.5 cm (14.4 inches) Ytong blocks

Then it is probably somewhat more expensive than here, but it also depends on the number and square meters of interior walls, how thick they are, and the overall geometry. In addition, we had built with calcium silicate bricks. I can’t say whether the insulation was included with the facade and plaster or in the structural work. In any case, it is not completely out of the ordinary; our contract was signed over 3 years ago, and everything is becoming more expensive...