ᐅ Raising a Sloped Plot for a Concrete Slab Foundation?

ypg schrieb:

I believe the original poster was asked, since it was ultimately about the Elk house.

But you are. Ever since your #18.. I’m reading on my phone and had to scroll because of your “I have” statements (or not 😉) to check if Clarissa was writing.. since this is about her issues.

Because up to now there were only opinions rather than facts being discussed.
It is generally known that prefab house suppliers usually build only on undeveloped land; many of them even require the foundation slab from the builder before delivering the house. If they do agree to a basement, it’s usually offered at a very high price. Building on a slope without a basement is only possible with embankment.

WilderSueden schrieb:

And the question must honestly be answered with no. Two points:
1. Of course, you can do the embankment as you did. But making the slope area safe and usable is incredibly expensive. Dead space is also costly, because it still needs to be reinforced and usually planted. Every planting requires maintenance. Maintenance on a steep slope is dirty, hard work.
2. You compare the same house once with a foundation slab and once with a basement. With that slope, you can use the basement for living space and typically save an entire floor. You have to fairly calculate that back in.

And I find the 90,000 saving very high, even ignoring the slope stabilization and planting; after all, layered compaction takes work too. And a 90,000 add-on for a basement seems high even on completely flat land.

PS: Plant two trees right at the edge at the right distance for a hammock. Otherwise, you won’t get that beautiful floating feeling anymore.

If the answer is “no,” Clarissa will have to dig into the slope. Because there are no other options for building on a slope without a basement.
The 90,000 figure for a basement is unfortunately realistic, although the number is from 2020. That was what a well-known prefab house manufacturer charged back then for an 8 x 9 m (26 x 30 feet) basement.

Our building area is located on a hill, and all plots are more or less on a slope—I know what I’m talking about. I feel sorry for Clarussa, but I believe the decision for or against a basement should fairly be left up to each individual. For my part, I just want to point out that it can work without one.

Also, I think the slope on the site of @sergutsch is somewhat gentler than that of the original poster @HalloClarissa… see also another thread, for example post 48 by @gutentag… which mentions 19% slope, exactly 5.7 m (19 feet) over 30 m (98 feet).

Pictures from HalloClarissa

Photo from @sergutsch… what gradient do you have?

sergutsch schrieb:

Because so far, the discussion has been based solely on opinions rather than knowledge.

Have you shared an opinion or described your project?
Either way!
There have been other threads from Clarissa asking whether to include a basement or not. It’s unfortunate that apparently no architect is being consulted. The house here will later be built on half-knowledge.

driver55 schrieb:

If it’s not real yet, then surely the plans exist. I would be interested in this "structure" as well.

I wanted to see the plans (natural terrain/planned terrain), not shots from 500 m (550 yards) away.

sergutsch schrieb:

...then it will be subcontracted at a very high cost anyway

it should have said "externally subcontracted"

ypg schrieb:

Did you express an opinion or did you describe your project?
...

I tried to present the counterarguments. Our project was meant to serve as an example.