Approximately 120 sqm, 1.5 stories

There are no doors and windows drawn in because they would only be a distraction for now; it is actually more about having a basis for discussion with the architect. He will tell us later anyway what is possible and what is not.
With the remaining space after deduction (with 12 cm walls), you end up with 1.60 m width for the entrance area, which is too narrow, so okay, the guest toilet goes outside :D.
Basically, the study blocks the floor plan, since there is no window on the gable (garage), I don’t want to put the toilet on the gable wall either.
Regarding the link: What is absolutely out of the question for us is an open living/kitchen area. The living room should always serve as a retreat.
About the fireplace, I expressed myself poorly; it goes on the interior wall, corner "hallway, living, dining" next to the passage to the dining area.
First, we are going to the kitchen studio later to gather impressions, then we can better estimate how little 3.10 really is.

One more question ... the way you drew the house, is north at the top and south at the bottom? I can't make much of your directional indications from the opening post :oops:

the sketch is oriented, the corner of the house at the bottom is exactly south. hm if the house were 9.5 * 9.5 I would have more space in the kitchen, then the toilet would have to be on the gable. But a square house with 1.5 stories looks odd :)

What I wanted to show you with Anya's floor plan, by the way, is that the floor plan size on the ground floor can already become quite tight with a study, especially if you then want to design the kitchen/dining/living area so that the individual areas are separated by sliding doors.

The trip to the kitchen studio has already led to the realization that a reasonable layout with a counter requires 3.5 m or more. After doing a bit more research and giving up a huge area for kitchen/dining, we have now found the floor plan of a developer. (127 sqm according to DIN) unfortunately the dimensions are completely missing, the representative is coming next weekend, then we will know more. Much worse right now is the re-measuring syndrome, I was just standing in the hotel bathroom measuring how long and wide it is :)

One should know at the beginning of a plan how much capacity is in 120 cm and how much is not. Three meters is also an important measurement ;). Therefore, one should always have a [Zollstock] with them and make notes about their experiential values.