Hanging house in the Southwest Palatinate - Our House Construction 2.0

I was startled when creating this sketch. Even if we implement it that way, there's still an awful lot of land left over for which I have no plan yet what to do with it. Whatever it turns out to be, it must not get any more expensive for the time being.

You do have a slope. Where are the steep sections, where the flat ones, and where those with moderate incline? What have you planned for slope stabilization?
Once that is done, you can always sow a flower meadow as a fallback and let it develop first.

Regarding the beams... that will also strongly depend on the exact slope you want to retain and how the beams are anchored in the ground. I wouldn’t calculate a retaining wall for under 200€/sqm just for the material.

I tried to photograph this and include it in the sketch. The dashed line separates the flat area from the slope (current).
Behind the house, the ground is leveled between 4-8m, behind that it goes quite steeply downwards. You can't really see that well in the photos. It's definitely too steep to walk down safely. We got quite a lot of excavation material from the house distributed on the property, because disposal under current conditions would have been ridiculously expensive. Therefore, our general contractor "hid it on the property" as best as he could. How it will look in the end once the area around the house is filled in remains to be seen. But it won't get any less steep behind the house.

I am puzzled about how it looks in reality compared to our sketch. Today I measured how far the area is leveled and marked it to scale in my sketch. According to the sketch, the slope towards the end of the property would be twice as wide as the flat area in places. But in reality, it doesn't look like that at all. Of course, it might be deceptive. I'll take a proper measuring tape next week and measure again.

I tried to photograph this and include it in the sketch. The dashed line separates the flat area from the slope (current).
Behind the house, the ground is leveled between 4-8m, behind that it goes quite steeply downwards. You can't really see that well in the photos. It's definitely too steep to walk down safely. We got quite a lot of excavation material from the house distributed on the property, because disposal under current conditions would have been ridiculously expensive. Therefore, our general contractor "hid it on the property" as best as he could. How it will look in the end once the area around the house is filled in remains to be seen. But it won't get any less steep behind the house.

I am puzzled about how it looks in reality compared to our sketch. Today I measured how far the area is leveled and marked it to scale in my sketch. According to the sketch, the slope towards the end of the property would be twice as wide as the flat area in places. But in reality, it doesn't look like that at all. Of course, it might be deceptive. I'll take a proper measuring tape next week and measure again.

I tried to photograph this and insert it into the sketch. The dashed line separates the flat area from the slope (currently). Behind the house, the ground is leveled between 4-8m, behind that it goes down quite steeply. You can't really see it properly in the photos. It's definitely too steep to walk down safely on foot. We received quite a lot of excavation material from the house distributed on the property because disposal would have been insanely expensive under current conditions. Therefore, our general contractor "hid it on the property" as best as he could. How it will look in the end when the area around the house is filled in remains to be seen. But it won't get any less steep behind the house.

I am puzzled about how it actually looks compared to our sketch. I measured today how far the leveling extends and entered it to scale in my sketch. According to the sketch, the slope towards the end of the property is in places twice as wide as the flat area. But it definitely doesn't look like that in reality. Of course, it might be misleading. I'll take a proper tape measure next week and measure again.

Doesn't your neighbor do that too, or am I misinterpreting the background?