This is the main floor of our house. As best I can determine, the dining room and kitchen were originally just a single room which functioned as a kitchen.
The second floor is split into two sections, front and rear. The rear section (gray area) is only accessible from the landing on the stairs between the first and second floors of the main portion of the house.
The layout shown for rooms 2 and 3 is what is planned for the future as there is no master bath yet.
The third floor is all mine to use as studio/art/work space as well as a future small meditation space.