The top of the hill was always flat, but it still didn't work. Now that the house is finally on the hill, whenever I try to move it, it actually stays on that level and I could even add a foundation and a basement, which is cool. But I still had to move all the rooms individually, which was annoying.
https://abload.de/img/imageebjzf.jpeg
I'm not a great builder in general, and not a fan of the terrain tools either. I hate how they turn the entire landscape green and yellow, which I guess is supposed to be helpful in some way, but it's really not, I can't even see what I'm doing until I switch them off.
Definitely not looking forward to more "adventurous" builds like this anytime soon...