Soil report shocked us!!

I would also say that you have to take care of the ground conditions yourself before purchasing. Either you ask the seller for a soil report or you commission one yourself. Since our seller did not want to do one, we commissioned it ourselves. The bearing layer only started at 4.5 m. We bought it despite the necessary pile foundation. We paid a little over 9,000 EUR for driving the 50 concrete piles.

What kind of company do I need to contact for the concrete piles?

our 14 piles cost 17 TEUR

Which company do I have to contact for the concrete piles?

What kind of company do I need to contact for the concrete piles?

I would contact a civil engineering company.

So, after much back and forth, here are the options for our building plot. Offers have been requested. What do you say?? 1. Soil replacement 2.40 m, whereby construction-period water management is not excluded. 2. Well ring foundation (the height of the well rings approx. 3.0 m) is not recommended due to the complicated floor plan of our house type S30. and the relatively low soil bearing capacity (250 kN/m²). 3. Pile foundation with the proven foundation grillage, number of piles 16 to 18 pcs., pile length approx. 10 - 12 m (must be precisely determined by the soil expert). 4. The procedure of vibrating sand compaction is currently being checked.

That sounds good that everything is now backed up with numbers! Who told you about these possibilities?

To be able to compare the variants, you always have to calculate the top edge of the base plate, i.e. include the costs for the base plate. Because, as I already wrote, the different foundation variants also require different base plates.

That sounds good that everything is now supported with numbers! Who informed you about these possibilities?

In order to compare the variants, you always have to calculate the top edge of the base slab, i.e., include the costs for the base slab. Because as I already wrote, the different foundation variants also require different base slabs.

The options come from the developer. Or rather from the architect.