I don't really see a problem. I would put something lower than that bookcase, maybe a desk, on that end of the wall. Pull the sofa away from the window a bit, then hang art centered over the sofa. Put a console with art above between the two doors.

Please provide measurements.

How many people in your family? Do you entertain often?

17.5’ long x 12.5’ wide. I think something lower than the bookcase would look odd since we already have a side table (should we do round instead of square?) and a couch that are low. Need to break up the room. We have 4 people and a dog in the fam - 2 young boys and my husband and I. We entertain occasionally but this is our family room, the living and dining room are two other areas we use for entertaining.

The beige drapes and the large ceiling fan in that small alcove seem odd. What’s behind the curtain?
You have two or three recessed lights and one table lamp. Is there enough lighting?
A sectional is very demanding...it wants to be put together and when it IS together it is very large for an average-size room.
The TV might look better placed on an actual console (longer than the width of the TV), which might also bring it down to eye level for comfortable viewing. It may also be too large for the long wall of a narrow room.
Once you post the measurements, you will get more comments and lots of furniture arrangement suggestions.

Thanks for the info. It helps a lot.

Yes, we’re getting rid of that ceiling fan (was here before we moved in) and centering it in the family room, and moving the two canned lights (which currently provide a ton of light). The curtains are more of a sand color (from previous home), and might get replaced with white. Behind there is a sliding door to the backyard.

This is the tv wall. Also undecorated year round currently.

The thermostat is placed in a very inconvenient spot on that wall. It makes putting anything taller than a console or low chest in that spot impossible. Would you consider having the thermostat moved to the edge of the wall so you could put a bookcase or armoire in that spot? If you won’t/can’t move the thermostat, put something large but low on that wall, but don’t put a lamp anywhere near the thermostat.
Art would do a lot to lift the eye up from all the low pieces, and would add color to the room.
I would change the drapes in the alcove and put a game table and chairs there. A smaller fan/light would look more in scale with the room.

Got it, didn’t think of putting a bookcase where thermostat is. What about where current bookcase is. I thought that was the main issue.

Okay, the drapes hide the sliders to the yard, so maybe no game table there.
As a family, do you play games or have casual meals in this room?

No, we’re trying to decide what to do with that area. It borders the kitchen, which doesn’t have a counter to sit at because of the slider in the way. Right now it’s just a place for some of the kids toys/play area. It technically is like a kitchen nook, but I hate the idea of having two separate eating areas and not using the main table for meals.

The problem with putting a bookcase on the thermostat wall would be accidentally blocking the sensor which turns the heat or A/C on. You want that sensor to have exposure to the room. Perhaps you could put a not-too-tall bookcase which leaves the thermostat exposed, and a piece of art with a white or light frame adjacent to the thermostat. There’s no way to hide it.

Not too concerned with that wall right now. The wall I’m trying to fix is the one that the couch and the bookcase is on...

if you want to do something on the TV wall, try something like these Ikea hacks. (there are a million hacks out there for Ikea,,,just go to Pinterest and search it for other ideas)

you could also build something like this for the wall. doesn't take up too much room, houses everything and offers some display spots.

you need some art on the wall behind the sofa. something large.

move the sofa down a bit. will the tv be too far 'off' if you do that?

that book case belongs in a bedroom.

what if you did some sort of cabinet?

or, if you want a book case, do a low one like this with some art work and life above it

Wow thanks!! That helps big time! We may be able to move the thermostat but great idea with that type of table. Question, to shiplap or not to shiplap the long wall behind the couch?

No shiplap. It's already dated.

Is the sofa centered on the TV? If not, do that. At least pull it off of the right wall so you have less space to fill on the left.