For example, if you only compare the shell house, meaning the shell with heating, electrical work, and screed, then there are significant price differences here.
The regional general contractors (GCs) charge prices that are about 20-30,000 euros more expensive for the basic framework of the house.
Another question: How can a layperson make a reasonable comparison?
It is rather the other way around, namely that the prefab house builders offer you a basic package, but adapting it will then exceed the costs of the GC’s offer.
Why does he already know that now, without knowing who/how is building the house? Finally, I know how building works; great idea and above all so simple. Thank you.