Should a hanging plot be filled for a ground slab?

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

No offense, I definitely consider myself capable of evaluating our project and judging it as good 8-)

That 90k for a basement is unfortunately reality, although the figure still dates back to 2020. Back then, a renowned prefabricated house manufacturer quoted that much for an 8x9 m basement.

Sorry, but you simply cannot know that. Only if you have several offers from different basement/shell builders on the table do you know what it costs. A surcharge from a company that outsources the basement to another and actually has no interest in the business—what do you think they will charge?

What is important with a sloping plot is that you make meaningful considerations WITH a capable planner BEFOREHAND about what the overall work of art should look like in the end. Where are the pathways? How do I get where? What do I plan where, and why? Only then do you get an idea of usability. Heights belong in there, of course. You can’t just have a 30% sloping plot, run to the prefab house provider, and get started. They don’t care. In the end, you get what sergutsch posted—a new flat surface creating an even steeper slope. Prefab house on top, and that’s that. And then you start wondering the first time you step outside onto your “flat surface,” oh—how do I get down from here? Well, we’ll just slide around a bit on the bark mulch.

I’m really persistent about this because everything has to be fairly comparable. Only that helps the original poster. And you only get a fair comparison if you first plan a sensible house there at all—that’s not it for me if I compensate for a 30% slope by filling it in and then, sorry but I have to quote approximately, “dump bark mulch” on top. And preferably even without a soil report, because “it will be filled in anyway”—you wouldn’t believe what some prefab house salespeople tell you. The house is supposed to stand there for generations and not disappear after 20 years. But hey, it’s not my place.

This isn’t about opinions but sensible comparisons—and that includes the points I mentioned.

Please read more carefully into the topic before you believe whatever any salesperson tells you. 19% slope is not “easy”!!!

There are also timber frame providers who plan with Wohn UG even though it is rare

So, my dears, I’m speaking up again. Regarding the basement, the same arguments often come up – "more living space," but we don’t actually need that. For us, a price difference of 15K is an acceptable amount (it’s just 15K more in the retirement fund).

Thank you very much for presenting your explanation.

Still, the arguments don’t quite convince me that with a fill, a new even steeper slope is created, which is hard to maintain.
So, it remains with the planned partial basement, which can then also be entered from outside at ground level.
Today we have an appointment with Knecht-Keller.
Afterwards, I will calculate what is more affordable: 70sqm bungalow and 35sqm living basement or 85sqm bungalow and 40sqm cold utility basement (in return, sheds etc. on the property are omitted).

Are the square meters enough for you? Barrier-free requires space and your room layout was not small

Are the square meters enough for you? Barrier-free costs space and your room program was not small

I have already built a wooden house once and now have some experience.
We prefer to spend the day at the kitchen table (with sofa) rather than in the living room. For us, a pure TV room with 12 sqm is actually enough, but this should be spatially separate in order to retreat sometimes.
In the bedroom, I would like to have a small fixed place for each of us for change of clothes; a separate dressing room takes up too much space.
We often have overnight guests (5 adult children) to whom we would like to offer a cozy and separate sleeping place (also office at the same time) – in this respect, a small basement apartment actually makes sense.
We would like rooms open to the sloping roof.
The plot now cost 95K. For the house without incidental costs, that leaves 300K.
The rising construction costs we will ideally compensate with the theoretically also rising sale price of our current house.
The squaring of the circle