We removed walls in the living areas to create an open floor plan, and provided space they wanted for their master bedroom retreat in their new second story area, complete with a spacious bathroom and a walk-in closet. We kept a large window on the front of the house that provided a nice view of the hills which was important to the wife and so she was able to keep an eye on the kids playing. While each member of the family was an important factor in the design process we incorporated room for a Jack-and-Jill bathroom between the kids bedrooms making sure to balance out the size of each bedroom and closet so neither child felt the other had better space.