Planning with an older development plan

Speaking broadly of “only nonsensical” strikes me as little thought through...

I didn’t say it was “only nonsensical,” but that these two points combined only are “nonsensical,” and in combination with the third point (more roof overhang) the “only” disappears and the hat trick is complete, beheading the sacred cow.

Well, that’s simple math. It depends on the ratio of increased knee wall height and reduced roof pitch.

Exactly. At least in upper-level math, the simple math then says the roof pitch is a factor before the roof pitch x, whereas the knee wall corresponds to the linear component “+ c.” And in point arithmetic there is simply more dynamics than in linear arithmetic. Since the factor picks up speed faster, it will soon be more than adequate to the linear component.

Don’t forget at this point that you have neighbors who had to build with the same more or less reasonable requirements and managed it as well.

Exactly. You can neither trade three roof pitch vouchers for two knee wall vouchers, nor buy an Ernstl. Really uncool fun spoilers, these development plans. That’s why I said, a look into the justification reveals why which degree of sanctity is assigned to which restriction.

A 50 cm knee wall can be softened by a suitable knee wall extension. Of course, that depends on the roof pitch, which we don’t know yet.

Stacking knee wall and knee wall extension is b. often a nonsensical act and a. here probably does not satisfy as far as less “lost” space is desired (and not just masking this height-unpleasant area).

It actually was the plan once, but then changed to a two-story house during our relatively long planning phase.

The companions of the relatively long planning phase will surely be happy if you show them (and the readers) the result.

I also did not say that it was "only nonsensical," but that these two points combined only are "nonsensical," and in combination with the third point (more roof overhang) the "only" is removed and the hat trick is complete, to behead the sacred cow.

I was asked in which points I would like to deviate from the development plan. Therefore, I do not really understand the condescending tone…

Putting knee walls and dwarf walls in series is b. often a folly and a. probably not satisfying here, as less "lost" space is desired (and not just hiding this uneven area).

What are you talking about? The knee wall is set at 50cm. If I want to use the attic, I can either regularly hit my head on the slope or I just build the dwarf wall at 130cm right away. What’s so foolish about that?
My neighbor is currently building like that, although everything in between up to 2 floors is allowed here. He probably just likes it. Sometimes you are so far from reality, I just don’t understand you.

The companions of the rather long planning phase will surely be happy when you show them (and the other readers) the result.

I will see if I can take the time to present our project before construction begins; it should be well prepared... besides, I actually want to keep a construction diary, but that will run on a separate blog. And then there must be enough time, as we have a lot of work to do ourselves. By the way, we decided on the small local carpenter's workshop; every one of my wishes is fulfilled, even without extra charges (except for possibly more material used or so), and the relationship has become so good over the last year that we sometimes meet privately for coffee. After the house is up with insulation, windows, and roof, we will do the interior construction, electrical work (with KNX), drywall, painting, and floors ourselves. Screed layers, heating installers, tilers, master electrician for acceptance, and photovoltaic are then the only additional companies we will need.

changed to a two-story house ;)

But then planned without land? The rule is: first the land, then the house planning.

I will see if I can still take the time before construction starts to present our project, it should be properly prepared then…

I would simply give the tip to look for another plot where a two-story building is allowed. As a neighbor, I would probably complain about your construction if I have followed the regulations and my neighbor does not or if I have any disadvantage. And I do have that if there is a 5-meter high wall next to my house. But I have absolutely no understanding for something like that:

Our wish is precisely to push these deviations to the maximum

I would basically advocate for considering one’s own wishes and the exploiting of development plans also from the perspective of the neighbors. After all, you want to live with those people at least peacefully, possibly even amicably. I know a (un)pleasant case here in a town where a relatively young widow had her neighboring property bought out and then (contrary to the previous statement made to the widow) a multi-family house was built there, which maximized in all directions all that was permitted and thereby also shaded the widow’s entire terrace and most of the garden. Everything was within the allowed limits but not within what the locals found morally tolerable and accordingly the residents were isolated from the beginning. One should preferably not fundamentally anger neighbors before moving in ;-)