justgottabme: Yes! excellent plan! The Tv needs to be in that corner next to the fireplace -- either mounted on the wall or sitting on a console or cabinet. Having a cabinet in that spot would anchor that whole corner. And more excellent ideas above too! Love the idea of bookshelves in each of the corners -- perhaps just try basic Ikea Billy shelving -- or other build-it-yourself shelves (try stores like Targer or Walmart)-- just to see if that plan will work for you? Or look for vintage shelving or bookcases on your local Craigs List! Swivel chairs can be found -- check your local Craigs List! But for now -- once you move the TV -- try placing one sofa facing the fireplace -- and another one facing the window -- forming the classic L-shape.

May I ask just what is a "servery" and what does one do in a "conservatory"? You must not be in the US. It looks to me that the current family room has easier access to the kitchen than does the current dining room. That would be a plus for doing what you want to do. As of the floor plan, it looks entirely doable and it makes sense to reverse the use of the two rooms. It looks to be awkward to carry food service all the way around and down the hall to the current dining area. If you have servants, that might make sense. Since most of don't have any such, it makes sense to have the dining area adjacent to the kitchen. Most people don't even use the more formal dining areas of their homes, except at holidays. The modern sensibility is that most little used areas of that nature just amount to wasted space. So, if you spend more time gathered with friends than gathered around a more formal dining area, make that change.

Table and floor lamps would help enormously. A larger rug, large enough to go under at least the front legs of the sofa and chairs. And, you artwork is hung extremely high, especially since you will mostly be looking at it from a seated position. I like the bright yellow, but it evokes a mood that is more "bright and cheerful" than "elegant and warm."

The small end table is forcing the corner of the sectional past the edge of corner wall. So, let that go. Rug is too big. Width is o k but the length should stop at the end of that wall. Art isn't working, especially if you want a sophisticated look. (Same goes for art over sideboard). Both are hung too high. So let them go. To make up for the fact you have lost an end table, you need a much larger coffee table. So let it go. Throw pillows: let them go. For rug...West Elm For throw pillows....sectionals are difficult. I like a lumbar on each cushion...a rougher fabric so it doesn't slide all over the place. Art is subjective....your call. Is he not cute?