am assuming this is a concrete structure, when shifting service toilet to utility area, and if there are apartments above, then running extra lengths of supply/drainage lines & introducing a structural sink slab (if this is concrete) under the new location can be charged extra.. it will be easier to divide the 3rd toilet. all services will be already available. only, do check on supply & drain pipes capacity as load is increased on the same pipes which were serving one toilet earlier..

hello, well firstly, is it possible to change the location of the TV unit? if so...the living room can be easily moved near the main entrance and the dining area can be near the balcony. if not, as you rightly suggested, the dining table can be placed near the main entrance. depending on the overall interior style of your residence many room separators are available in the market or can even be customised as per your preferences (eg. hanging or floor screens, beaded Curtains, water wall, book shelf, vertical garden, blinds, stained glass partitions, wine holder dividers, shoji screens, photo display partition...the possibilities are endless). you also create some funky wooden distressed partitions like louvred screens. hope this helps. cheers!

that is what i have added if you can see the pic above.. want some suggestions on partition that i can use between dining and sitting

I wish you all the best for your renovation. One of the most positive thing about the house is space looks convenient. To start of with the designing, 1. first let us start with a creating a focal point, now that the sofa Color is Blue, let us try creating a palette (photo attached) starting with blue, so we can paint white Color on the walls. 2. let us put on two mirrors on both sides of adjacent walls of the curtain which makes it look spacious and reflects light. It gives a cool effect. Even when the curtains are covered. 3. U many use a rug to match the Color of sofa and white walls. Make sure the rug is either beige or a combination of blue, white and grey hues. So that it complements everything well. 4. U may paint the wall behind the TV grey or give it a wooden panelling effect with wallpaper or tiles. That makes a focal point. 5. Increase the height of TV stand with Aluminium or Stainless steel rods, u will find them in the market and paint it white. (Photo attached)