A 2½ story, finished residence has three levels of finished living area, and is characterized by a steep roof slope (8 to 12 or greater) and dormers. Because of the roof design, the area of the third floor is usually 40% to 60% of the second floor area. Since the third floor is finished, enter the total area for all three floors for total floor area. This style is available for single-family residences and town houses only.