This venerable edifice exhibits various styles of architecture: the Anglo-Norman of the 12th century in the basement of the nave and most of the doors; the lancet style of the 13th century, in the chancel and transept, and the obtuse arch of the 15th century in the side aisles and chapels. The basement of the tower is of red sand stone, and the upper portion of grey, and in the Anglo-Norman and early pointed styles of architecture. The dimensions of the church are—length from east to west 160 feet—breadth of nave and side aisles 53 feet—transept 90 feet, and height of tower and steeple 223 feet; the height of the steeple from the bed of the river 300 feet. The beautifully proportioned octagonal spire which rises from a tower of noble proportions, is a conspicuous ornament to the town, and is seen from the adjacent country to a considerable distance. The nave and side aisles externally, in the pointed style of the 15th century, are of the Grinshill free stone, and entered on the north and south-west by beautiful semi-circular arches, adorned with chevron, lozenged and foliated mouldings; the south-west porch is in the Anglo-Norman style, having zigzag mouldings, issuing from clustered columns, with foliated capitals. On each side is a small pointed window, exhibiting specimens of the earliest rudiments of the millioned Gothic architecture, in which has lately been placed some highly interesting painted glass, of German execution, on which are depicted various incidents, chiefly from the Apocrypha. A stone porch, entered by a pointed arch, had recently been erected before the corresponding door on the north side.