Construction costs rough estimate, realistic or not?

Hello,

I will definitely save myself the geologist. By the way, my general contractor, who has built about 50 houses in the area in the last 10 years, also says that it is wasted money in our area...

Then I hope for you that your BU remembers his statement if there should later be atypical settlements of the house structure. Because if not, you will not only have the extra costs "on your hands" to keep the damage within limits, but also no means to hold your BU liable.

Rhenish greetings