The original chancel was shorter and lower. In about 1330, monks from the Priory of Watre rebuilt and enlarged it, giving it higher windows, including the stonework of the East window, and a less steeply pitched roof. At the same time, it is believed, the original narrow arch under the tower, just seven feet wide, was widened to give better access between nave and chancel. The tower may have been reduced in height at the same time. So the unique structure of the church as you see it, with its double rounded arch supporting the mass of the tower, and with a view of the extended chancel, was fixed by 1330—except that in that time the roof was thatched and the walls almost certainly plastered and probably decorated.