Price increase - Our construction company wants 21.4% more

No. The basement also has its own price per m². Only the additional construction costs, like earthworks, can vary greatly. Everything directly connected to the house refers to the typical price per m². So also kitchen, stairs, railings, floors, etc. ...TV, if it's hanging on the wall, of course not ;)

That's why for me the kitchen counts directly towards the construction costs. Without a kitchen, no house. But you can also discuss this endlessly. Difficult topic.

Aha, and what would that be? I get a total price for the house from the main contractor. The "features" like controlled living space ventilation are logically priced separately, but the shell of the basement is not! So, for example, I take 160m² for the house as the basis for the price per m², in which a basement for about 70k is included? The m² for the basement are logically not included in the value basis, right?

If I include the basement, this ultimately distorts the result because the price per m² in the basement is much cheaper than on the living floor.

So: if I don't know exactly what the basement costs, I can't possibly make this calculation.

I see it the same way... Totally difficult topic – also the topic of additional construction costs. There’s so much included here – 100% everyone calculates it completely differently xD

I never really found this calculation meaningful and have never oriented myself on it.

Aha, and who would that be?

Question: You received an offer for the shell construction with prices for steel, concrete, etc. in January, right? Why is it getting expensive now if you accepted the offer?