-Cancel the dining room, as the guest WC might possibly go in there. On the short side, place the sink and the WC respectively. The door opening outward into the hallway.
-Plan the kitchen in a U-shape for more storage space.
-Open the storage room at the front, so that a niche is created as a wardrobe, possibly remove the right wall so that it would form an "L" in the current view.
-Move the door of the utility room forward, practically to the "wall stub" to gain space in front of the current utility room door, then the utility room might have about 10 sqm.
-Remove the partition wall in the living room, I think it feels a bit cramped then. And that way you can also oversee everything or talk to guests if you are in the kitchen and they are sitting in the living room.