ᐅ Concrete slab on a slight slope for a single-family house with a basement

Hello everyone
I want to build a single-family house without a basement. Planned structure:
- Crushed stone, compacted. Slope evened out with topsoil and crushed stone.
- Styrodur (continuous thermal insulation)
- Concrete slab 25 cm (10 inches) thick (without strip footings)

The house will be built on a slight slope. Slope across the house width (10 m / 33 feet) is about 90 cm (35 inches), with the first half of the house on a level section and the slope starting on the second half.
I’m concerned about the concrete slab. Can the compacted crushed stone settle over time, causing the soil/crushed stone under the house to “shift” or move? Or is compacted crushed stone sufficient/okay? Should strip footings maybe be used instead, or are there other ideas?

I would appreciate your opinions, possibly a suggestion on how to improve the design. Thank you very much

Best regards

Topsoil is completely unsuitable for your project.
The thickness of the foundation slab is determined by structural requirements, not by the homeowner’s preference.
The thickness of the insulation is based on the specifications from the thermal insulation assessment.

The proper and strongly recommended procedure is a soil survey including foundation recommendations, followed by structural engineering based on that.

Yep, the structural engineer and geotechnical expert determine how the construction/foundation is built to ensure nothing "shifts." You or anyone here in the forum don’t need to worry about that...

What some people try to come up with on their own here is truly unbelievable?!

Rising prices might lead to increased speculation by hopeful investors.

However, reality sets in no later than when applying for the building permit / planning permission.

If anyone has ideas or suggestions, I would appreciate it, but if you only want to make jokes or say nonsense, it’s better to stay silent. Naturally, everything will be handled by a structural engineer, but my question was meant to gather ideas from experienced builders.