Floor plan ground floor + upper floor for semi-detached house

The plan from your general contractor is better than yours. If you want a separation between the stairs and the living area, then just extend the stair wall and leave the rest.

The kitchen is too small at 2.60m. We need at least 3m. Otherwise, we won’t have enough countertop space. Therefore, I had to "steal" 40 cm from somewhere.

...but you wrote that

I prefer the correction though.

Well, then that's fine

I also once tried with pencil and graph paper ... it came out almost like with on the ground floor. Upstairs I find your current state quite okay.

Really write down again all the things that need to be accommodated in the house.

... space for the fans. Water connections, power connections (large fuse box and probably extra meter for heat pump), telecom connections, all that already takes up space. Then there are dryers, washing machines, possibly a second fridge or freezer, laundry baskets, drink crates, brooms, vacuum cleaner, possibly one small shelf for bits and pieces that should be quickly accessible, like toilet paper, shopping basket, supplies.....
...
Depending on how old your child is, you still need space for stroller, baby car seat, mud clothes, etc. If the child is older, you of course don’t need this space anymore.

I can expand this "list" with cleaning supplies, wrapping paper, Christmas and Easter decorations, craft stuff, small "tool kit," mop bucket, seasonal wardrobe (coats and shoes), guest blankets or spare blankets, folders...

You do have capacity upstairs too. I would put a > 3-meter closet in the office for the wardrobe, spare blankets, folders, papers, craft stuff, and decorations. Then you have that accommodated already. (Cleaning supplies and vacuum cleaner in the storage room). Technicians should not arbitrarily leave their stuff in the utility room, but so that you can put a closet and shelves. You really need some elbow room there
In the bedroom, really plan for more closet space than 2 meters. Surely more stuff will accumulate.

Personally, I would still be annoyed by the wasted living space caused by the large hallway. But understandable, if you disturb each other with noise, you have no choice but to close off the living room. How about if you skip the doors in the kitchen and open the kitchen towards the staircase side (provided you are not bothered by the kitchen smells). That way you can install a counter there and everything would be airier. Of course, kitchen parties are forbidden in the evening.

Personally, I would still be annoyed by the wasted living space due to the large hallway. But understandable, if you disturb each other with noise, you have no choice but to close off the living room. But how about if you do without the doors in the kitchen and open the kitchen towards the staircase side (provided you are not bothered by kitchen smells). That way you can install a counter there and everything would be airier. Of course, kitchen parties in the evening are forbidden

Advantage: gain of space, more open room atmosphere Disadvantage: kitchen smell in the living room, groceries have to be carried through the whole house into the kitchen, kitchen must always be clean when visitors come

Advantage: gain of space, more open room atmosphere

Disadvantage: kitchen smell in the living room

No, the living room is closed anyway

, groceries have to be carried through the entire house into the kitchen,

your house isn't that big after all... the kitchen starts for you after 2.5 meters of walking distance

The kitchen always has to be clean when guests come

The counter hides quite a bit

Well, that's good then

I also once sketched with pencil and graph paper ... it turned out almost like 's ground floor. Upstairs I find your current situation quite okay.

Really write down all the things that need to be stored in the house.



I can expand this "list" with cleaning supplies, wrapping paper, Christmas and Easter decorations, craft stuff, small "tool kit", mop bucket, seasonal wardrobe (coats and shoes), guest blankets or spare blankets, folders...

You have capacity upstairs as well. I would put a > 3-meter cabinet in the office for coats, spare blankets, folders, papers, craft stuff and decorations. That way you have that already stored.
(Cleaning supplies and vacuum cleaner in the utility room). Technicians should not randomly place their stuff in the utility room, but so that you can put a cabinet and shelves there. That already needs some elbow room
In the bedroom really plan for more closet space than 2 meters. Surely more stuff will accumulate

Currently, in our rental house we have the following storage:
The wardrobe is open with 130 cm width and 140 cm length. That should remain about the same.
Cleaning supplies are in the kitchen -> utility room + kitchen
In the dining area there is still a serving trolley, which will disappear and the material will move to the kitchen.
In the current kitchen we still have storage space left, so the size of about 8-9 sqm is sufficient.
Besides that, we have no more storage space on the ground floor.
In the basement we have about 10-12 sqm with a cabinet and shelves for storage. That is moving to the attic in the utility room, under the stairs and into the garage. The rest of the stuff in the basement is rubbish.
On the upper floor we have a storage room, which we will also have in the new house. (Suitcases, hygiene articles, vacuum cleaner, ironing board, etc.)
The technical room with heating and washing machine will be relocated to the utility room.
The bathroom is as large as the new one -> fits.
The current rooms with office, bedroom and children's room are overall smaller -> so also more storage and space.

And in the new house we will have about 30 sqm more storage and living space in the attic! So everything should fit