Hi,
I had immense pleasure while working on this project.
Here are my designs for sleeping area of the house. When designing the house ventilation and circulation is kept in the mind. Every room and toilet is provided with windows for light and ventilation. There are six alternatives with different room layouts and positioning for common toilet to obtain 5 bedrooms. Even if the terrace extension (with demolition) did not happen you will get 4 good bed rooms. A common corridor is given so all rooms can easily be accessed also in common passage a family area is given in all layout alternatives keeping in mind that this design is for family.