With a gable roof, the following options would open up:
[*Some storage space above the bedroom, bathroom, and gallery, access via a classic hatch with a pull-out ladder.
[*]Sleeping lofts for the children - particularly nice, e.g., a single bed above the "tube entrance"
[LIST]
[*]More space for play and desk on the same area
Preferably execute the shower on the ground floor from wall to wall, install sloped tiles and a flush shower drain across the entire width. The door from the glass company is cheaper than a door from the bathroom manufacturer.
Giving up symmetry from the outside gives you the possibility to move the window in the kitchen to where the optimal kitchen layout allows.
The symmetry of the house front either leads to a window that is too small in the guest room or too large in the guest WC. Here, too, it's better to think from the inside out.
It seems that the sofa only serves TV enjoyment. This area is not sociable. No problem if life takes place at the dining table. We also have no couch area that would be usable for guests, either sitting at the dining table or "lounging" on the terrace.
A TV device protruding over the wall becomes a "stumbling block." Solvable with a folding swivel arm. Still impractical for everyday use.
The arrangement of the furniture in the hallway reminds me of those computer games where you have to dodge obstacles. But it can look very good.
The children’s rooms look as lastly drawn. Perhaps new creativity will come if these are first drawn into the upper floor.
Putting a room in the basement is a good measure. It could also be the guest room – presumably they are there less often than one works at home.
Sympathetic request and drawing.
PS: Am I actually the only person here who always has to smile at the so-called "villas" with 10 x 8 m² floor area? Then I myself would live in a villa, even if I would never call it that.
I smile along - that is a marketing euphemism.
Bauhaus style with flat roof
Square is by no means Bauhaus.