Floor plan planning single-family house 180m2 south access - chaotic floor plans

yes, I am now also a bit confused.. thought of a more modern version, so straight.

What would one do differently if one wants this American style?

All good! I just assumed a modern house. If you want the American style - I assume something with Southern charm, then go for it. I am looking forward to the architect's opinions.

The American Pinterest McMansions are pretty but expensive to implement in Germany. My wife is also crazy about them and always tries to copy the DIY built-ins and decorations with panels and moldings and such. For that money, it wouldn't matter. I would take a look at American floor plans.

What would one do differently if one wants this American style?

Planning a suitable house. There are certainly companies in Germany that build this style. I saw it here recently. It immediately came to my mind, the house fits in America. Maybe try searching for Swedish house.

What would one do differently if one wants this American style?

What do you like about it: the style itself or rather the contrast between this style inside and an exterior but suitable for Germany house?

It already starts with the fact that the ceiling heights there easily reach three, four, or five meters and the average new single-family house is 250 sqm. Last year, I was invited to a colleague's home at a conference in Denver. The kitchen was as big as half of our ground floor. The garage was suitable for four cars of the type X7 and Dodge Ram. It's crazy what they build there. Pretty cool.

We spoke with the architect today. So the clear ceiling height on the ground floor is 2.75 m and on the upper floor 2.50 m.
Additionally, we discussed the upper floor a lot. The architect is very confident about his design and said that it makes sense for the children's rooms to be located in the west (top of the plan), so that they do not get full sun in the summer and do not overheat. On the south side (Child 1), he would also prefer to install a small window (not floor-to-ceiling).

He would integrate the downpipes into the wall in the living room so that they are not visible. He also said that, for example, you would not hear the flushing as the pipes are sound-insulated. Is that realistic?

We really like the parents' area in the architect’s floor plan because all our wishes can be realized with it.

Otherwise, we also like your design :) The rooms all have a very straight line, which we like.
We explained this to the architect as well. What would not work here are the respective 3 m in the dressing room.
Is there a way that we could somehow achieve this? In addition, we would reduce the size of the bedroom slightly and enlarge the office accordingly.
We want to send the design to the architect on Sunday.

Here is an alternative layout of the upper floor to get rid of the bathrooms above the living room and to use the rooms better, as I think.
The children's rooms occupy the south gable and thus both have the opportunity for windows on two sides and lots of light. The bathrooms are ideally disposed of over the storage room behind the kitchen. Whether that still works with the children's bathroom would have to be asked. Likewise, the utility room – here only "thin" pipes lie, which might be stretchable a bit. Bedroom in the cool north, office has to take what is left.

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Now you might consider whether you want the hallway narrower again and insert the setback into the children's room. These are details that would simply be implementable. Without views, however, it is difficult to say whether it is worth it.