Single-family house, approximately 160m², Bauhaus style; first draft according to our wishes

Here you go.. except for the view from the east, we now find it much more harmonious and orderly. In the east, we still don’t really like the kitchen and the bedroom in combination with the bathroom window.. let’s let it sink in.

The east view still looks rather modest. I would make the bedroom window as wide as the window on the ground floor. I would match the right window in the bathroom and the one below in the WC to the one in the middle. I don't really understand why you want a window with a low sill next to the two toilets on the ground floor and upper floor anyway. It feels like everyone can look into the toilet? A window with a higher sill height would be better there.

And as already mentioned: I would also place the door to the guest WC from the hallway and not from the wardrobe room. The wardrobe is not exactly spacious anyway, and in this way, you could use the other side for wall hooks. The sink could then be placed in the WC where the door is now.
By the way, I don't think it's a problem if the door to the guest WC opens outwards. Guests standing at the front door and AT THE SAME TIME being in the toilet is really VERY rare. So these two doors almost never collide (never has in our case). If someone falls in that small room, they won't be lying in front of the door, and you could still get in.

The east view still looks really quite poor. I would make the bedroom window as wide as the window on the ground floor.

But then the elongated element next to the DK window would be too wide and no longer "plasterable". For this reason, we discarded the idea

I would match the right window in the bathroom and the one below in the WC to the one in the middle.

But then we would "only" have transom windows in the bathroom. Isn't that counterproductive for the light exposure?

I don’t really see why you want a window with a low sill next to the two WCs on the ground and upper floors. It feels like everyone can look at your toilet? A window with a high sill would be better there.

Good point!

And as already mentioned: I would also place the door to the guest WC from the hallway and not from the cloakroom. The cloakroom isn’t exactly spacious anyway and this way you could still use the other side for wall hooks. The washbasin could then go in the WC where the door is now. By the way, I don’t find it a problem if the door to the guest WC opens outward. It is really VERY rare that guests are standing at the front door AND are on the toilet at the SAME TIME. So these two doors almost never collide (for us, never). If someone falls in the small room, they won’t be lying in front of the door either and you could still get in.

Hmm. Actually a good idea. However, we wanted to place the sideboard and a mirror on the wall in the hallway, which would no longer be possible, but maybe on the other side...

Not at all, I have one myself.
Still, you can’t just put it anywhere simply because it is still under discussion. Then you can no longer take the planner seriously. And yes, the exterior pipe also rubs against a window on the upper floor... if the window is now adjusted in the further announced window planning to match the exterior views, possibly shifted slightly upwards (view to the left) or just made bigger accordingly, the disaster is preprogrammed.
I'm slowly doubting the professional staff. This is not the first time here that the program pretends to have knowledge.
An exterior chimney pipe only goes on the gable or flat roof, but not on an eaves side as here. It is a no-go in the planning.

Such an exhaust on the facade is indeed the fail of the 21st century....
And apart from that, you can use the money saved for nice built-in furniture, for example.

So we have it similarly above, with a window wiper on a telescopic pole it works great for cleaning the outside. Despite the rainy gray day, you can see how bright it is. I don't think it makes much difference in terms of light incidence which of the two windows you choose. I also think that the two different window formats in the bathroom look strange when viewed from the inside.

such an exhaust on the facade is really the fail of the 21st century....

Hehe, yes, sidepipes are 80s