Floor plan design for a 175m² single-family house with 3 children

Thank you for your comments.
The floor plan is currently still in progress. Regarding the kitchen, the island is definitely meant to be a bit larger. I hope I was able to address some of the remarks; as you can see, we too still have some ideas that are being implemented or still need to be implemented. I have already taken many of your points into the discussion with my wife. Thanks a lot for that already. :)

I am just wondering, as @pagoni2020 mentioned, about planning 5 meters as 2 elements. Do you know how heavy 5 sqm of glass are? Does that even exist?

We are still in the process of selecting the elements. We are also flexible about having two elements, with one of them being the sliding door. The idea is that the window in the living room will be fixed glass and the dining area will have the window front, and parts of it will definitely have sliding elements.

I would completely do without the partition wall and door in the passage area between hallway/dining/stairs at the beginning of the stairs. Unlike @pagoni2020, I see the floor plan as more narrow: the table sideways, the kitchen under 5 meters wide, and remove the offset between office/living room.

We consciously agreed on the protrusion of the office here to give the living room a bit more privacy when someone enters the living/dining area. Otherwise, you would come in and immediately look to the left at the sofa, and with the protrusion there is a small visual barrier.

I would probably separate the living room with a wall towards the outer wall, put the fireplace at the end of the wall, then a passage between outer wall and fireplace. Without a frame. Possibly a sliding door.

The partition wall with the fireplace is still to be extended but remain open towards the outer wall, as the living room itself is somewhat smaller and this would make the room a bit more open. However, the entire wall should shift a bit towards the outer wall so that the fireplace is at the lower end.

I would completely do without the partition wall and door in the passage area between hallway/dining/stairs at the beginning of the stairs.

My wife envisions a large glass door here, with part fixed and the door opening to the left. Similar to the door here:

If you hire an architect why didn’t you let him design freely in the first place and only presented your textual ideas; I would consider that a lost opportunity and a pity because he is trained and can think differently.

Maybe I expressed myself poorly. We gave him our ideas, he started implementing them, and we are currently exchanging over small details that we want to improve in certain places.

From the bed you look directly at the bathroom door, the bathroom itself still needs planning, as the sink behind the door is not well placed; furthermore, the door collides with the shower door.

This issue is definitely on our list and is still in progress. :D
I would like to place the bed with the headboard towards the hallway but unfortunately it no longer fits in length and you can barely/not walk past the bed at the front. :(

Upstairs, again the culprit stairs cause unnecessary hallway space; does this tiny storage room have to be?
If another door is installed in there, it probably won’t be very useful, right?

We got the tip for a storage room from our site manager. He said that some storage space upstairs can never hurt and this spot offered itself.

We had consciously agreed here on the projection from the office to give the living room a bit more privacy when someone enters the living/dining area. Otherwise, you would come in and naturally look directly to the left at the sofa, and with the projection, there is a small visual shield there.

Definitely think about where the TV and couch will go. And draw in your actual furniture, not placeholders that don’t fit here at all. Your thinking is counterproductive in that those sitting there would not see who is coming from behind. That causes discomfort. You don’t sit with your back to the door. Whoever comes down the stairs has a half-side wall stub in front of them, then the corner, then the sofa side. That can be done if there are still 2 meters in between, but not in a tight space. That is not nice.

Here my wife envisions a large glass door, part of which is fixed and the door would open to the left. Similar to the door here:

But that has little to do with your planning. You have no sightline to a distant piece of furniture, but right there is the fireplace. In this draft, because of the fireplace, you have no spaciousness. However, I find the door great :)

He said that having some storage space on the upper floor can never hurt and this spot there presented itself.

(Storage) space can and should also be had on the upper floor, but not just a leftover niche on the south side, but planned. I think there is much more possible overall. For the family, not much remains on the south side, right? ... only where it is not needed. And one child benefits from it...

As far as I know, the drawings were deleted at his request (if not the whole thread) at his request. So let's drop the mention of old threads. Everyone also has a right to be forgotten.

What do you care about your chatter from yesterday, Dr. Adenauer?

You can't close a thread here. But you just let your thread rest, then no one is interested in it anymore, and it becomes a forum relic.
What you're doing now is inconsistent – here you are a clean slate and fittingly for Halloween you awaken this corpse. Nothing can be comprehended.
Ultimately, I don't care, but it had to be said. Have a nice weekend.

:-) and by the way, this also goes to the aforementioned thread:
https://www.hausbau-forum.de/threads/efh-172qm-fragen-zum-schnitt-dachstuhl-und-klinker.27213/page-9#post-445186

I think the floor plan is quite successful. But try drawing the couch realistically for 5 people. The fireplace always turns out much thicker than the architects draw it. With plaster, etc., you actually have to calculate at least 1m width here. As the architect has drawn it here, only one log fits inside. So you need much more space to not sit directly by the fireplace and burn up ;-) To save space, I would install a gas fireplace. Most people care more about the look than the warmth anyway. With gas, the stove turns on at the push of a button, it doesn't give off much heat, and you can build it as narrow as shown in the plan.

I would hang the TV above the gas fireplace and place the couch facing the room.

I would definitely not build the staircase like that, I see absolutely no added value in it. It has already been said. 50% of the utility room is circulation area. You can afford that, but then the space is missing ...