"The early Norman Church, which was built c. 1140, would have been of simple cruciform layout, with a central tower surrounded by a nave, a chancel and two transepts. Soon, aisles were added to this original structure: the north aisle in about 1150 and the south aisle towards the end of the twelfth century. The present west tower was built in the early part of the thirteenth century, and sometime in the fourteenth century the chancel was widened to cope with the liturgies of the period. A porch was also added, and then, in the fifteenth century, two chantry chapels, either side of the high altar. On the abolition of the chantries, the Roucliffe Chapel, on the south side of the sanctuary, was for some time a school, before, in 1920, undergoing renovations to restore it to liturgical use."