Feedback on the floor plan design 150 sqm

That's really annoying when you're excited about your floor plan draft, then get a "negative" comment and have to agree with it ;)

So regarding the stairs, hallway, and children's room, I agree with you. I also shifted things a bit, made the hallway upstairs and downstairs smaller, and gained a lot of space for the other rooms.

But I don't want to move the kitchen. I like to cook and spend a lot of time in the kitchen, so I want to look out into the garden, not onto the street. And we will use the kitchen more than the office/guest room. It may be that your suggestion regarding the light is a bit better, but my idea shouldn't be that dramatic?

or living room where the office is and office where the kitchen is.

I like cooking and spend a lot of time in the kitchen; I would like to look out onto the garden, not the street.

You can do that – kitchen by the garden, living room in the best evening location :) Then you also avoid a strange wall stub in the dining area, which you feel like you hit with your left elbow almost every day.

Unfortunately, I don’t see much gain on the upper floor; it feels more like a random rearrangement when I look at the storage room and the dressing room. One is hardly usable, the other is pure wasted space.

Why don't you choose a type house from a general contractor? You don’t really have any particularly unusual demands – there is always something suitable to be found.

The external dimensions are now 10.10m x 10.10m.

That means: square.

The windows still need to be aligned a bit more precisely and symmetrically,

No. You already had an unfavorable ratio of many rooms on little space before – not only did you not improve that, but you made it worse by squaring it. This measure always leads to Tetris and tubular "cross-sections." Squaring alone leads to a roughly estimated additional need of space of ten percent – at least you have effectively "discounted" the house smaller without reducing the area to be built and paid for. Symmetry causes a comparable surcharge; and it is "aesthetics for proportion dyslexics." I would say that so far you have already hit the post hard with quite some force. Adding symmetry to that now would make the oversalted soup perfect.

What would bother me is that the kids have to go through the dressing room to get to the bath. I'm just imagining the teenage son who wants to get in the tub with his girlfriend while mom is standing naked in the dressing room ;).

Whether that is realistic or not, I leave open, but this floor plan probably belongs more in the trash than back on the drawing board. Just look at the dressing room: a good twelve (!) square meters of space, and the usage is limited to a meager four (?) meters of closet length. We currently have just under seven square meters of space and can use eight meters of closet in it, and even with daylight. The design is simply not in the league where ten square meters here or there get lost in the baseline noise.

I would be bothered that the kids have to go through the dressing room to get to the bath. I’m just imagining the teenage son who wants to get into the tub with his girlfriend while mom is standing naked in the dressing room

Oh, when a man is completely naked, that’s the only situation where mom definitely can’t give him a dressing-down. And if she’s naked too, she can’t spit on a tissue to wipe the girlfriend’s lipstick off his cheek. So everything’s all good :)