What is feasible on the existing property and budget

I have not yet delved into the general regulations in the state building code or building law, or whether the requirement would be there

The first height is 210.5 + the allowed 8 m. The drawn full floor does not necessarily have to be that. The drawn roof pitch at 8 m house width is 30°. If we become wider anyway, a knee wall has to be added.

Then attached is my pitiful attempt to imagine the slope in 2D myself, which would lead to the garage. Here I still assumed 3 m per floor. But for the garage, 2.50 would also be enough to avoid a downward slope into the garage.


Many thanks. Collecting the paragraphs myself would have taken me years.


Then another 20 cm come on top. We really don’t need a railing to the garden. That would not correspond to the "open" concept. The fewer the steps the staircase has, the better. Then we would have to pile up 70 instead of 50 cm.

Then calculate backwards first:
500k
- 20k kitchen and a bit of small stuff
- 25k earthworks (naturally more expensive due to the slope)
- 30k incidental construction costs
- 25k double garage
- 20k carport/entrance canopy
- 30k landscaping (naturally more expensive due to the slope)
____________________
350k

at 2000 EUR/sqm you can afford around 170 sqm.

That should be enough for 3-4 people.
But you have to say that your wishes are cost drivers. Just the double garage + carport/entrance canopy will cost a lot. Photovoltaics and other things probably won't be included at first.


I also don't fully understand your consideration regarding basement/ground floor/upper floor.
So you want to build 3 storeys?
The slope is rising, right? I would plan a basement with entrance area, children's room, dining area, bathroom and utility room into the slope. On the upper floor then kitchen/living/dining + office + storage + guest bathroom.
So only 2 storeys. Or am I misunderstanding your planning?

We are building something similar on a slope. The terrace for us also comes on top of the double garage. When requesting offers we originally also asked to put the garage under the house. This almost always turned out to be more expensive, because this would increase the footprint of the house, somehow make thermal separation more difficult and you would also have to somehow hold back the slope on the side of the house + create a level surface for a terrace in the garden.

ok, I probably have to memorize the State Building Code and the Building Code first. 18 years ago, these requirements probably did not exist in Hesse yet. At my sister's place, you can still fall 1.50 meters deep into the abyss...

How high should my budget be to realize this? How much does a centimeter of filling cost me? I'm not asking for nothing here. These implementations are worth a bit more to me than the ultra-modern tiled floor or a rimless toilet.

In the best case, financing suddenly provides 20-50k more budget, for example.