Single-family house with 190 m² and a 55 m² granny flat in the basement on a slight slope

Here are dimensions and a site plan for better understanding.

This is beyond belief, what I don’t understand here:

According to the pictures, the house stands alone in an open field, but according to the site plan, it is in a building gap that only comes about by demolishing the neighboring building; so half of the plot’s width would then remain free???
The design is from you "with hints from the architect," who is now also commissioned. His designs don’t convince you, which however does not make it any more helpful not to show them to us either.
The pitched roof is supposed to be more expensive due to a missing concrete ceiling; here I also cannot follow.

The whole place is supposed to become 190 + 55 sqm, so 245 sqm. Subtracting the layman planning surcharge, it will probably be about 40 sqm smaller with a professional and then cost about 615 k.

What did you expect by starting the planning right away with a double mistake (drawing first, then planning; and creatively infecting/contaminating the architect with a self-design)?

I find the architect and tendering good, but the presetting on single contracts is unfortunate, and considerations about façade design are way too early. You yourself see what the nowadays technically outdated chimney looks like as a skyscraper—at least this advantage should the visualization at least have.

I would still advise you: crumple up all that nonsense, first put in a resting phase before restarting to gain distance and clear your mind, before you change the architect (because unfortunately you have "contaminated" him), and then properly start with a new architect with "Module A" (see: "A house-building roadmap, also for you: the HOAI phase model!"); after that, you go again into the usual resting phase (possibly also without a decision being made insofar as the site more or less “dictates” a stony basement).

The forum community will be happy if you also show the designs that don’t appeal to you—at least the plot with contour lines or measuring points.

The house is sta

Of course it is standing ;-)

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190 sqm for 2 and why a granny flat of about 55 sqm? Did I overlook the reason?

Post the dimensioned floor plans with realistic furniture. Then include the architect’s floor plans as well as the explanation of why you two want to live the way you do. In general, I do like spaciousness, but not just because of pure size, rather because of the special feeling of the space. In my opinion, you have already gone way too far with bricks and other things... All that is not bad and planning along is also fun, but of course you also get fixed on something and in the end you are just a layperson; so far, I only see a huge box with different roof shapes.

As a consequence of the needs, I would accommodate technology, storage room, and bedroom with bathroom in the basement. On the ground floor, the living area, etc., plus office/hobby/guest room, which could also serve as a bedroom in old age. Doors at 100 cm. I currently see 4 filler rooms of living quality: in the basement, on the ground floor, and two on the upper floor. That doesn’t have to be the case. However, if one level, namely the upper floor, is eliminated, a generous plan can still be created. Then the desired flat roof is also attainable. This would be the needs-oriented planning according to the room program for you on this hillside plot.