Floor plan for 200 sqm city villa - Are wishes achievable?

What I read from you is probably largely due to craftsmanship, but of course there is always better. About 30 years ago, I installed an Ikea kitchen myself in a new building and then sold it after 2 years for a few marks due to quality reasons. Then I got a new BAX kitchen planned and installed by a friend with Gaggenau appliances, etc. (BAX unfortunately has a completely different company philosophy today). This kitchen is still in use by the current homeowner and probably will be for another 10-20 years; it doesn’t break and has a timeless but chic design by an interior designer. The cost back then was 40,000 gross plus a chic lighting concept, etc.
However, the quality at Ikea has now adapted to today’s standards, and the hinges, etc. usually come from the same manufacturers as other companies.
But if, as describes, you need or want to implement individual things, you should of course adapt the choice of kitchen manufacturer to these wishes, because cheaper providers naturally have more limitations.
I was only referring to the somewhat general statement here that IKEA might not be valuable enough. I had enough comparisons, and NOW it is an Ikea kitchen and I like it very much in gloss white. However, in my opinion, you should bring some imagination to the design and customize individual parts, that is, move away from Ikea.

I fear that with this plan there will be hooks somewhere in the entrance area and the shoes will simply be taken off there. And every day you will be grumbling as you put your daughter's stuff away in the separate room. I don't consider that "user-friendly." Also in your floor plan: are people supposed to walk with dirty shoes through the entire hallway to the cloakroom, nicely spreading the dirt, only to finally take off their shoes there? No, probably not, right? So shoes will be taken off as soon as you come in, right behind the door. The orderly housewife will then dutifully carry them to the cloakroom at the far end of the hallway. As for the esteemed husband, I'm not so sure about that anymore. With the daughter, I swear on it, the shoes will fly to the next corner (or stay right in the middle of the hallway) and the jacket on top.

The hallway is really getting to me. I'm shuffling back and forth on an empty floor plan here. I'm not really getting anywhere... Regardless of the type of stairs, if there's enough space and it looks somewhat decent, another type is also okay. But the 4m living room does limit the placement of the living room. Especially because the terrace or the 3 floor-to-ceiling windows/patio doors have to go to the right due to the orientation of the property.

Floor-to-ceiling windows in the kitchen naturally limit the placement of furniture quite a bit, especially if I want to follow the tip to orient the kitchen rather towards the terrace side. What absolutely must go into the kitchen is an island and a pantry that should actually be hidden from the kitchen row, so that a cabinet serves as the "entrance." I'm still toying with the idea of a seating corner because despite having a large dining table, we currently prefer to use it, although the dining area is now also at the island and therefore really very close. A separate dining area like the seating corner would actually hardly make any difference in terms of walking distance compared to the large dining table.

I swear on my life, with the daughter the shoes will fly to the next corner (or stay lying right in the middle of the hallway) and the jacket on top.

Amusing, but you are probably right.
That was already mentioned before and I can understand it.
Those were more like dreamy wishes on our part.
But that's exactly what this is great for.
Because somehow we probably didn't think that practically.
The feedback helps improve.

yes, of course. You also have to expect that TVs keep getting bigger. Sofa 3m L-shaped with large seating area (currently) and 55 inch TV

The TV doesn't have to get bigger, it should simply always match the seating distance. Bigger TV, bigger seating distance.

I'm not so sure about the dear husband there anymore

Now, now, what do we read there? .......it's hardly to be expected any other way when he just comes home from hunting with a wild boar on his back. Just because the lady of the house has to briefly put down her nail polish and get up from the sofa to properly store the hunter's shoe?

The hallway really drives me crazy

Today's problems..... the hallways

It is now the case that the quality at Ikea has adapted to today's standards and the hinges etc. mostly come from the same manufacturer as with other companies.

I don't really have anything against an Ikea kitchen.
Apart from minor details, I am very satisfied with ours.
Nevertheless, I don't really want to move such a kitchen because it consists of an enormous number of individual parts. The base cabinets (corpus) at Ikea are not in one piece like with other manufacturers, so these always suffer a bit more during a move than others.

As I said, ours is also in gloss white...
Only the handles were a poor choice.
They drive me crazy, I constantly get caught on them with everything.