Buying a house on a slope, topic drainage

He was only a bit annoyed about this terracing, saying that it would be much better with a basement here

For such a young house, the seller might still have invoices for all that stuff (and you would need them as the heir of the still valid warranties), I would be interested in those. From the picture, the 11ant basement rule looks fully confirmed, with the result: "40:0, Advantage Hornberg." So, giving up the basement definitely wasn’t worth it at all.

Construction company said: "that the house as well as the wall corners will be backfilled with 0/32 frost protection material, which is characterized by its excellent water permeability. Therefore, no additional drainage system is necessary."

Construction company said:
"The house as well as the corner walls will be bedded on 0/32 frost protection material, which is characterized by its excellent water permeability. Therefore, no additional drainage system is necessary."

42 - really?
An unspecified material is supposed to have frost protection properties because its grain size diameter is less than or equal to 32 mm, ah yes, sounds logical. I have a bag of popcorn 0/32 here. Now I can sleep peacefully (but I’m not even tired yet).

Alright, one should be fair. If you simply google "0/32 gravel," you get tons of results, most also with the addition "Frostschutz." I will have to be content with this answer for now until I receive exact documents from the construction company. Thank you