If it's just you can you find a smaller round dining table and move it further back so there is more room for the living area? If the kitchen is very large I would consider making part of that a dining area and have a much larger living space. You can then put a sofa with it's back to what is now the dining area and place small but comfortable chairs where you have the couch now with a small table between the chair with a lamp on it.

The OP said the blue boxes are radiators.

Have you considered using Bedroom 1 as your Living Room? It's certainly more spacious, and has a layout much more suited to placing sofa, chairs, tvs, etc.

edited to say, I suspect that you are planning to use bedroom 2 as your closet though, right? So you still need a bedroom, so I guess my idea won't work. After all, you don't want to sleep in the kitchen, though it would certainly be efficient in the morning lol

Another option and I would move the TV outlet and this would also hide the fridge side if you had the right furniture for the TV.

Here's another. It would be helpful to have the dimensions of the room. This may or may not fit. Also what sizes are the furniture you currently have?

FWIW, I used our guest bedroom as the "TV room" for years. Might give you more options for your space. Actually miss it in our new place, since SO and I usually watch TV when we are beat and want to lay down anyway.

Where is the front door?

What are the actual dimensions.

Is the house built already or are you still in the planning stage?

What furniture do you have already that you plan to keep?

Here’s another layout

The kitchen has a lot of floor space. Can you put the table inside the kitchen area? That leaves a lot of extra space for living room furniture.

Like lafia's arrangement, but move the table to the right so that it is inside the kitchen area.

Similar to above, but the sofa would probably look better centered between the two windows. And that allows you to have a long sofa. You would have room to add a chair and ottoman as well, with a floor lamp. The dining table could be located in the kitchen area, and used for things besides dining - perhaps stacks of books, or large flower display, etc. Some or all of the chairs could be used or stored in other rooms.

You might need to extend the wall to hide the refrigerator and leave a spacious area for the TV. I am pretty sure you can place your tv distant from where the cable comes in, although I don't know details for how to do that.

Sofa on long window wall will look and feel the best and make the room inviting when you walk into it from the front entry. TV on the short wall opposite the sofa; pay to have the wiring redone and move on......you cannot make the space bigger but you can make work well....PS what and where do the stairs go? Do you have an upstairs? What are the dimensions of the living/dining room and kitchen.

Truly charming and lovely area. photos of entry looking into the room from front door.

(I imagine most Americans know this, but just in case - first floor in Europe would be our second floor.)

mind if you take a pic of the wall everyone wants you to place T.V.