Okay, the floor plan, we and the general contractor have now really taken a beating. [...] The only requirement for us is that the utility room is next to the kitchen and the kitchen adjoins the living/dining area.
Not quite: namely also the garage to the utility room. I would first look for the causal connection to the "praise" for the floor plan there. Besides, Lower Saxony doesn’t necessarily mean Frisian gables. It is actually not meant to show that you can count to three, but to give the entrance a gable despite the house axis being parallel to the street.
What is so bad about the layout?
It’s not the layout that’s bad – but the idea to try a changed layout on the same floor plan. A new one should be made. No matter how similar it will be afterwards – it is nevertheless beneficial not to drag the previous one along into further evolution.
I would be interested in a floor plan from you with your suggestions. Do you have something for us?
Maybe you yourselves:
The design was created according to our specifications (hand-drawn by us).
Show the drawing, no matter how messy. I would like to see how faithfully it was implemented. I actually doubt the stated procedure. Instead, I rather think the planner imposed his ancient plan on you in a modern adaptation as the implementation of your drawing.
The planning from him was free and the first draft.
More likely in vain, and as said, I rather think: even the first draft of his grandfather – albeit in the approximately sixty-year-old original presumably with a basement.