Floor plan single-family house 110m² - ground floor + upper floor - first draft room layout

It is constantly said here, "Dimensions will be given later." But the building dimensions are fixed, so the interior dimensions LxW are also fixed. (Relatively "wide" for a semi-detached house (5.8 x 9.8?))

As mentioned here several times, too many rooms (wishes) for the area and far too many traffic areas (corridor/hallway...)

But that is exactly why I am here and created the post. I also think that I will be wiser after building the house and perhaps would do certain things differently or remove wishes because they might turn out to be not so important in hindsight. But this is our first house build and that is why we just wanted to ask for a few pieces of advice, tips, and experiences.

Constructive criticism is always welcome; with statements like "a 110m² house is not a lifelong project but a temporary solution," I can unfortunately do little.

My sincerely meant tip: there aren’t many really good, different options with these dimensions. This is not meant to be judgmental at all. We went back and forth a lot when we bought our first semi-detached house back then. In the end, we settled on the standard floor plan with minimal changes. It’s simply a fact that these few standard floor plans make the best use of these dimensions. Otherwise, something will always be tight or off somewhere. And these floor plans aren’t bad either and make the house look most spacious. Also: if several houses are being built, for example, a change in the staircase shape will cost you quite a bit of money, since these are ordered in large quantities as standard, just as an example. And again: is it now a REH, i.e. a corner terraced house or a mid-terraced house? With a corner house, where you could also make the entrance at the side, there would be completely different possibilities.

don’t you have a house with similar dimensions or am I confusing something?

I would omit the two balconies on the upper floor. More expensive smoker’s exit. With the money saved, I would give the two children’s rooms a gallery in the attic. First as a play level, later for sleeping.

On the ground floor with a 7m exterior dimension, there will be something around 6.2 m left inside
1. Kitchen line 60 cm
Distance between the lines 120 cm
2. Kitchen line as a peninsula without counter 100 cm
that’s already 2.8 m
2.8 m is the minimum space requirement for a dining table with chairs on the left and right. But only zero-size people can walk past those seated.

Personally, the shape of the living area bothers me and it feels cramped.
I would cut the pantry. Remove the door, the kitchen becomes bigger.

On the ground floor, I would probably change everything.
Based on the last floor plan
Swap WC and wardrobe. WC gets a shower
Kitchen becomes living room
Dining becomes kitchen
Living becomes dining
Living becomes a separate room
Kitchen has direct garden access (outdoor dining area) and access to the dining area
I would leave the dining area open to the stairs
Fireplace is omitted

What ultimately fits, you have to try out with real measurements and furniture.
Walk through your apartment. Every narrow spot that bothers you now should be avoided. Just as well, what you find too big, you can reduce. Look around at friends and relatives. Make the tape measure your friend.