This is an estate agent photo of our new sitting room (I added a silly fake view because I don't want people to know where I live).
Opening to the right goes to dining area of kitchen / diner. Doors to the left go to patio. Bottom left of the pic is the doorway to the hall. Fireplace doesn't work afaik.
We have a big coffee table, a sofa and a couple of arm chairs, plus side tables.
How would you arrange it?