The north wall of the transept has 3 Norman arcade level windows and a Decorated window to the east. At the tribune level are 4 windows but the outer ones are blank and Perpendicular tracery was inserted in the inner two as well as in the clerestory windows. Flat buttresses separate the windows. The rose window above was inserted in the 15C. There is a small northeast stair turret. The tower has three Norman openings with louvers.