Floor plan improvement suggestions for a single-family house on a south-facing slope

Currently, the machines are used exclusively privately, but a commercial use in the future cannot be completely ruled out. However, to operate them in a general residential area, among other things, TA noise and TA air must be observed, therefore the basement would be optimal in this regard.

Then invest in very, very good soundproofing. Otherwise, you can schedule your business around the children's sleeping times :)

Where is it supposed to be built? Now spill the beans that it’s going to be a basement/workshop. Then the budget won’t even be enough for an MVP in the countryside.

Your basement workshop does not work structurally. The south facade of the house cannot rest on the basement ceiling. That is not feasible. I am not surprised that the architect does not implement your wishes.

Here are my comments on the floor plan.

[*]A dressing room as a windowless corridor that you always have to walk through to get to the washing machine or the bed is neither friendly nor open. 1.5 m between wardrobe walls?
[*]The window above the bathtub is hard to open and must be secured against falling.
[*]The access to the shower directly in front of the door is also not ideal. You either always step on the shower mat or have water right in front of the door. Or you get the door in your face when you are just drying off. Plus a windowless, dark corridor on the upper floor.
[*]I also don’t know how good it looks when you walk from the garage directly under the stairs. That could feel oppressive. The dining room and living room are planned too tight, as others have already noted.
[*]Then the many cost drivers like a roof terrace for laundry? Not even as a lounge in front of the bedroom or as an outdoor space for the kids’ rooms? That’s also over 50 sqm that not only have to be waterproof but also designed and secured.
[*]Plus a basement that is supposed to be allowed for commercial use and generally higher ceilings?
[*]And a noisy commercial operation in your own home with children? Who wants that?
[*]I see that at > 800,000.

I am not surprised that the architect does not implement your wishes.

The result of his efforts would still be helpful to discuss for comparison.

Your basement workshop does not work structurally. The southern front of the house cannot rest on the basement ceiling. That is not feasible.

I thought the basement room was just a placeholder.
: the basement actually cannot be planned afterwards, as it is subject to structural requirements. After the load-bearing walls in the basement comes the ground floor, then the upper floor adapts accordingly.

To make absolutely clear what this space requirement in the basement is for, there is a picture attached.

Honestly: now this will be a naive dollhouse and this discussion is quite pointless. It seems to me that the focus is on realizing a workshop and not on the living value.

Currently, the machines are used exclusively privately, but a commercial use in the future cannot be completely ruled out.

Oh dear, you might be mistaken that something like that will even be approved. Commercial use in a residential area?

However, in order to operate these in a general residential area, attention must be paid to TA noise and TA air, so the basement would be optimal in this respect.

What does the development plan say about that?
And where is a granny flat supposed to be built here now? :D