..., that if you have a basement in the slope, the house standing on top should preferably be masonry to create a higher weight which stabilizes the slope-side basement wall. It can be done differently (for example, we have a rather daring construction of a masonry basement with earth pressure beams and a timber frame building on top), but it’s logical. In your case, rather a concrete basement (so also a precast basement!).
Your problem right now is the other side of the house, namely the valley-side access. Once that is solved, the basement is a piece of cake.
, can you maybe tell me a bit more about your solution here? What did you solve and how, and what costs did you incur? I’m also imagining a timber frame/timber stud house on the basement. That’s too light in terms of weight.
Since we originally didn’t want a basement at all, let alone a 150 m2 one, we want to explore our options. As I described before, I saw an interesting solution at Kega Holzbau. It looked like a garage-basement/slab hybrid.
The garage moved forward under the house, with a concrete reinforced back wall, half-level to a partial basement (just for the technology and a bit of storage), back wall reinforced again with concrete, another half-level to the ground floor...
Could that be a possibility? That way I could save a lot of unnecessary basement including earthworks and—if necessary—set the garage deeper, which would also shorten the driveway (although I’m actually satisfied with the 30m ... but I don’t know what the trained eye would say about that. Maybe it’s nonsense after all.)