And another floor plan

[*]Living-dining area is once again furnished exemplarily with doll furniture. I would place the cooking/dining area there with direct terrace access and move the living area to the space currently intended for the kitchen. Then the floor-to-ceiling windows can remain as planned, and an additional floor-to-ceiling window can be added on the right wall of the dining area facing southwest. The floor-to-ceiling windows could also be wider than 176 cm rough opening.
Examples:
3-seater sofa is drawn at approx. 68x205 cm (if you compare with other dimensions on the floor plan in relation)
Dining table is drawn at approx. 72x150 cm

[*]Swap guest room and children's room so that the children's room gets the southwest orientation
[*]Windows on the upper floor generally a bit wider. They are all only 88 cm rough opening ... how should light get into the rooms there?
[*]Where is the wardrobe planned? Under the stairs?
[*]Rethink bathroom planning ... if it is planned this way to use the shower without a door, the area in front of the toilet will regularly get wet.

That is not the architect's wish; it is simply building law. If you enter the BET and arrive upstairs, you must be able to stand upright ;)

But not in an uninhabited attic.

Then we wouldn't be allowed to enter the attic at all ;)