Design living/dining area in a semi-detached house

Hello,
We have bought a semi-detached house that will be built starting in January. It is 125 sqm in size and has a 340 sqm plot. That is enough for us as a small family. Now we are wondering how to most sensibly design the living/dining area with the kitchen. We have ideas, but maybe someone here has ideas we haven’t thought of yet.
I am attaching the floor plan. The kitchen should go into the niche at the top with a small bar counter facing forward. Then a dining table and sofa still need to be placed. The entertainment unit would go on the wall to the neighbor. Maybe someone here also has a semi-detached house of this size and has experience with it.

Spontaneous answer? Forget the counter. Row to the right and row to the left. Table with chairs in front of it.

Tip: "Build" furniture in different sizes, scaled to your plan. Then you can check what might fit and how.

Congratulations on the house! I completely agree with : Just keep it simple. A counter will be in your way several times a day and only used briefly every other day. Make sure you have plenty of workspace and arrange the cooktop, sink, and trash as ergonomically as possible.
Get a table with adjustable size settings so you have enough space for the living area and still room for nice "feasts."
Look for narrow and comfortable chairs. Some things look great in the furniture store but turn out to be bulky giants in your own four walls.

Should and can anything still be changed in the floor plan?
Then we have a corresponding subforum [Grundrissdiskussion]

I am having trouble with the floor plan. I assume that the semi-detached house is being built by a developer and the floor plan was already fixed at the time of purchase? Did the developer not have a furnishing proposal?

I have trouble with the floor plan. I assume that the semi-detached house is being built by a developer and the floor plan was already fixed at the time of purchase? Didn't the developer have any furnishing suggestions?

Previously, there were individual rooms and no open living/dining area. No, there is no furnishing suggestion and there is not much that can be done with the floor plan anymore. One could possibly move the door and wall of the living/dining area so that the staircase is included in the room, but I think that would hardly help.