Interesting discussion. Then my wife's wish is confirmed. Originally, we had the fireplace in the open space as a room divider, and she wanted to move the fireplace to create space for children, visitors, etc.
Regarding the submission of the documents, I mean the submission to the house builder so that the plan check can be carried out with water pipes, statics, etc. The supporting beam, which will probably be located in the living area, is also planned here. The architect does not draw this himself.
We initially had the window seat in the living room as an addition for sitting. Due to the exterior appearance, which is now symmetrical, the architect redesigned it this way. Now the advantage is that you can look at the fireplace and see into the dining and living area.
I like the tip about the outward-opening window under the pergola; we should consider that again.
The mentioned construction costs, by the way, will have floors, painting work from Q2, and doors carried out as own work.
The kitchen is still being planned; we are considering placing the bar stools downstairs facing the open space.
Thanks again, the ideas are very good!