Colorful Street

Along the street are 16 houses, in red, blue, and green. There is at least one house of each color. No two adjacent houses are of the same color.
Between any two blue houses there is a red house. Between any two green houses there is a blue house and a red house.
What is the largest possible number of green houses?
Note: The street is straight, all houses are located on one side of the street.