Could we use a raft slab with ICF walls on a sloped site?
...basement on problem soils
A raft slab is engineered to spread the weight of the building evenly over the entire surface of the slab, so there is no footings needed, and no, its not going to go anywhere when done properly, and a perimeter skirt insulation is added to prevent frost heave.
So what you may be able to do, ...