Library? Game room? Do you have kids or grandkids? A game room would be nice next to the pool if so.

How does it relate to the rest of the house? What doors go in and out of it?

It looks like it gets a lot of light, but isn't really big enough for most uses. I might put a tall/large (real!) plant in there, and maybe a small chair and desk up against the right wall as my writing spot.

If it was mine, it would be a plant room. Look at those windows!

And a bookcase full of books and an easy chair with an ottoman and a side table.

Everyone’s needs are different, and I don’t know what would be most useful for you, so I’ll just say what I would do: a sitting room/sunroom.

With the room having a nice view of the pool, and wonderful big windows, I’d have plants, and pretty fabrics, rattan/wicker, etc. Maybe a small sofa and chair(s), or a chaise lounge, or just chairs … with a textured rug, lamps, colorful art.

I don’t know your decorating style to be more specific, but think it could end up being a favorite little escape. :)

I see you have exercise equipment — it would be a nice space for that, too.

I know it’s not officially a sunroom, but if you’re interested in that idea, lots of pictures here that might inspire:

https://www.houzz.com/photos/sunroom-ideas-phbr0-bp~t_12300

Of course an internet search brings up many more, and you can narrow it down to styles you like.

I posted earlier before seeing other replies, we have similar ideas. :) The windows and view just really call for plants!

Thank you all for the suggestions. We are house and a made a video of how the room is laid out. Please excuse the home, we are still trying to figure out what furnishings we will add.

My video did not show, booo…