Interior design and redesigning of floor plan for 141 sq m bunglow

existing banglow has following rooms in it. 5 bedrooms 1 living room 1 dining room 1 kitchen 2 bathroom Hipped roof. I am looking for contemporary design with more spacious feeling inside. Entry to the house should be very impressive and grand too. Bigger washrooms and minimum of 4 bedrooms. I am looking for following to be performed as part of the project. 1. Prepare a new floor plan with more airy and open look and feel and get it approved. 2. Once the floor plan is approved by me/us. 3. Interior design of the whole floor starts.