Dear Client, I have used all of your recommended steps and fulfilled them into interior layout. Now you have "1 Master Bedroom with walk-in wardrobe and en-suited bathroom also a single room for your children where can you fit even 3 children (if you use stair-beds).I used the balcony for laundry space and also got a big living room with open kitchen and big dining table. All of the wardrobes are built-in which can compete the contemporary style in your apartment. If you need any changes please contact me. Have a nice day.