Single-family house ~180m² in the city with a view of a nature reserve

Pulling out the parent wing on the upper floor costs unnecessarily a lot of money for the benefit it provides... Better to save the money and invest in a glass roof including a awning. I would also consider swapping the living and kitchen areas. If the kitchen were in the current living area: on the left side a large kitchen row with tall cabinets, which also replaces the too narrow pantry. In the middle of the room a large island, where washing and cooking take place. The dining area remains where it is, possibly turning the table 90 degrees. Living in the current kitchen area: possibly give the house a bit more width, which also benefits the parent area on the upper floor. This creates a cozy TV corner on the ground floor, which is also a bit more separated from the kitchen's passage traffic in the evening. If the stairs are intentionally placed in the common room (because the pantry is replaced by a larger kitchen): keep the U-shaped stairs, move the entrance to the living area. Leave the stairs open or possibly a closed staircase with a storage room underneath. The gained space can be added to the utility room. The changed stair entrance would also help with the upper floor layout, in my opinion. My rough thoughts on this, without having checked everything in detail for feasibility.

How does it actually feel from the inside when you look up at such a superstructure from the living and dining room below? I don't imagine it to be very nice when you can't see the sky and it's basically always darkened. I already notice that in our current apartment, I find it somewhat oppressive. And there we only look up at a balcony that protrudes about 1.5 meters.

How does it actually feel from the inside when you look up at such a superstructure from the living and dining room below? I don’t imagine it being very nice when you can’t see the sky and it’s actually always darkened.

Water on my mills

Just don’t interview too many builders from your circle, because with them usually EVERYTHING went perfectly and was decided in the best way, so that you immediately have to feel bad. I like the opinion and my acquaintance, an interior architect, always says that often the details make up the whole. For example, I could imagine larger, bolder glass fronts here and little play of color in plaster/facade. Straightforward, that would certainly be nice. We probably have to build a gable roof but even there there are endless possibilities to make it look modern and chic. Moreover, sometimes the exterior appearance must subordinate to the function or the feel-good factor of the interior, because at least until the divorce you live inside! The way to the kitchen is unpleasantly inconvenient, I would definitely want to go directly from or very close to the kitchen to the outside (and back in). For distances with furniture, installations, etc., measuring, trying... over and over again often helps, also in show houses, because what is pleasant to one can already cause a rash for another. Minimum standards for dimensions/distances from architects I would definitely consider, but whether something is comfortable or pleasant I alone decide (49% me and the insignificant remainder the wife). Last but not least my neighbor; one of my former neighbors had a hallway WITHOUT windows, so when he entered the house he stood completely in the dark. Yesterday on the way I saw that a builder had built his new pergola so that a post stands one-third in the kitchen window (no joke). I am sure that he too would have great tips for you and would explain to you the advantages of his construction. I therefore always recommend visiting the respective know-it-all at home once to see whether you really speak about identical tastes....

I therefore always recommend visiting the respective know-it-all at home once to see if you really are talking about identical tastes ....

Maybe the two should have preferred to seek advice here in the forum

It is not about this OP or any other OP adopting the wishes and ideas of others.
It is about having listened to / considered every raised objection / idea once and then deciding: No, thank you.
The comments of the forum users are only meant to sharpen the awareness for / against decisions - nothing more.

The superstructure darkens during the cold season.

The budget is not enough. Even 2500 I find tight for this cube.

Is the house allowed to be built like this? No B‘Plan does not mean free rein. Keyword Par. 34. how exactly it is handled varies from municipality to municipality. Even from chief to chief.

There is nothing to add to the other points, especially from YPG.