Just an amateur’s immediate reactions: Your room has the proportions of a screened back porch and I would lay it out accordingly—create a ”view” with the TV and your beautiful blue tulips, on the long unbroken wall, and place the sofa opposite, under the stairs. If you feel like spending money, get a shorter sofa that doesn’t jut out so far past the stairs. The stairs and hardwood floor are very handsome. I worry that drenching in such a deep color would make the stairs look detached from the rest of the space. You might consider a dustier color such as dusty pink or green, which are true to the Art Deco period, or a cream to tone down the yellowish wood and highlight the plants. If possible I would place the keyboard on the long wall with the TV. Also, if you’ll excuse the pun, the coat closet is a hangup. It’s what forces the travel path down the length of the room. I would substitute a coatstand in the front corner of the window wall and the long wall. You can use it for guests and whatever coat you need at the moment. offseason coats can stay in the coat closet. (That’s assuming that you usually enter through the front door rather than the kitchen.) I would not place the sofa on the window wall, because that would make for a bowling alley effect and would force you to look straight into the kitchen. You have some great features in this room—best wishes for your plans.

Oldsue gave you good advice. Because you have no room for a coffee table, I suggest that you consider a couple of C-tables to use for drinks and snacks. This is one that I bought and love. It slides under the couch when not in use. https://keelanscott.co/products/modern-walnut-c-table

Just my two cents. I wouldn’t paint even the walls in that dark of a color, it will only enhance the ”tunnel” effect. I would keep ( or paint ) the side walls light & maybe, if you want, paint the window wall a shade or two darker. The lighter side walls will help them recede somewhat, darker colors will just make them close in more.

^Agree with K Laurence.

It appears you have the need for some serious storage. when you have limited space like this Half your battle here is keeping yourself organized and picked up and put away.

When you do not have the real estate of space on the imprint of a space the best thing you can do is go up and utilize the vertical space you have.

I would consider placing a piece like this on either side of the sofa

closed storage underneath and open on top. You can house a lot of things on those shelves like you plants, books and even use baskets on them for additional clutter.

Get a couple small drink tables that can be placed /layered near the arms of the sofa for drinks end tables

You can use cube ottomans for coffee tables and extra seatring

you need an apt size sofa and you need to keep it on the shallow side

If take anything away from this reply let it be to NOT colorwash you space. Based on the color you used you are not afraid of color but there is such a thing as too much and your rendering proves that. Instead get a textured wallpaper like grasscloth in a color and wallpaper the entire back wall of your space. This will ground the space on that side making the other side appear to open up.

If you shift you space slightly you can fit a small scale chair on the end of the seating area.

I would not color drench. It looks like a tunnel. With a long room with windows only at the ends, you want to maximize light, not reduce it. There appears to be some kind of alcove between the TV and the kitchen. What is it? It looks poorly utilized. I don't see a dining area. Normally, that would be between the kitchen and the living room. Do you need a dining table? Or are you content with stools at the kitchen counter? I tried that once, the sight of the sink when eating my Thanksgiving turkey was less than ideal.

When you take a picture of the space on the left between the TV and kitchen, post each picture separately. When they are all in one post, it's hard to see the details.

To sum up, I think there's plenty of opportunity for improvement without color drenching, but we need better pictures and a better understanding of your needs.

Some thoughts:

--No color drenching. Others just gave you a great lesson on how lighter colors make space recede, which is what this tight space needs.

--Commit to downsizing any small furniture pieces cluttering up the floor. Do a major cleanup of your stuff so that everything has a storage space.

--Design Interior South makes a great suggestion: a tall storage piece between kitchen area and living room area. You have space there.

--Get nesting side tables for the sofa on either side. You can pull some of them for use as coffee table as needed. These Lucite ones are great because they don't take up visual space.

--Hang the TV on the wall and get a narrower hanging shelf with storage below it to make the walking space to the staircase wider. This one below is 11.2" from Wayfair. They have many others. Choose one that's less than 12" deep and can hang on the wall. It'lss make the room seem airier.

Sunol Modern Residence · More Info

Here's a narrow living room that uses nesting tables as coffee tables as needed. TV stand is too deep, though. You need 11"-12". Note the bold graphic art. Change out your three tulip panels for something bolder.

Home Staging Alquiler en Logroño · More Info

Society6.com has very affordable graphic art and abstract art and pieces come in all sizes. You want something big for over the couch or two big square pieces like the ones above.

--Your rug is attractive but too small and should divide the kitchen area from living room space. Take a look at West Elm and go for a rug that fills the space up to the staircase.

--You may be able to get a barrel chair for the far end of the room. A swivel would make TV watching more comfortable. Curved furniture takes up less space than boxy furniture.

Corley Contemporary Upholstered Swivel Club Chair, Turquoise, Faux Leather · More Info

No dark color drenching.

You really need to de-clutter and organize.

It sounds like you love your plants, but you just don't have the room for large plants.

Your layout and furniture aren't really the problem.

Calm comes from a sense of peace and clutter is the opposite of peace. That rug all by itself is a far cry from calm. All the advice about declutter is good and a nice light wall color will make the space feel bigger. I like the tulips and if you love them they are a keeper.The plants are taking valuable space so maybe try moving some to other rooms and what is left in one place by the window. You are in desperate need of storage and a huge declutter so start there .