That's true, you are right where you are right, . However, I currently cannot assess the basement from the cross-section. Although here
something at least on the right side can be deciphered as the entrance.
It seems that quite a bit of earth has been piled up in front of the living area on the ground floor.
... does the basement have to include an apartment? Did you want to build higher for the view? Would it possibly be an option to skip the basement entirely and start the house about 50 to 100 cm higher?