However it is primarily a Norman church with a very important Norman crossing tower, and Norman north and south transpets, nave and chancel.
The nave has Perpendicular clerestorey and Norman west window with shafts and below, a curvilinear traceried 3-light window.
Norman south doorway possibly reset.
C13 south aisle has 4-centred arch window and articulated tracery window and lancets in west ends of north and south aisles.
Norman north transept has Y-traceried window in place of Norman window, the left hand jamb and half of arch of which remains.
Extremely fine Norman crossing tower in 4 stages divided by corbel tables.
Plain first stage, second stage has large 2-light windows with billet surrounds and flanking 2-light arcading, above the arches tile-pattern ashlar, the top bell stage has fine sub-divided arches the outside ones blind, above the arches fish-scale ashlaring.
Above the top corbel table a C14 parapet and short broach spire with lucarnes.
Moulded C15 nave roof with cambered tie-beams.
C15 porch roof.
C14 south door with inscription in the border "RICHARDUS BEBY RECTOR ECCLECIE DE CASTRE FE(CIT)".
Small Saxon sculpture in chancel.
Recumbent effigy in chancel is said to be of Virgilius, Rector 1228.