If I remember correctly, the height difference at the house is 1.8m? Or on the property?
Anyway, quite a slope.
Apart from the other comments here (I don’t want to repeat them, but I agree with everyone), I simply find the house inappropriate on such a sloping plot.
But the title already says that one believes or is in the final planning stage.
So I guess it’s only about refining details here.
Therefore, I’m out.
Because the house simply doesn’t fit the property for me. You can now optimize windows and/or the bathroom, maybe even create space in the entrance area, but it remains a house that does not suit the property.