4. Make your home flow. Your new room needs to have a space plan that flows not only within itself, but also with the other rooms in your house. "Organizational flow helps you find the way in your house," says Hebson. Flow from one space to another takes function into account (for instance, keeping your kitchen close to the dining room), but also considers materials and color. A continuity of materials and color from room to room — furniture, flooring, millwork, baseboards and interior doors — will allow your home to flow visually, too.More: Mastering the Open Floor PlanHow to Read a Floor Plan