Rubble and ashlar magnesian limestone, lead and C20 cement- tile roofs.
Tower: early C13, 3 stages.
louvred belfry openings each of 2 pointed lights divided by shaft with carved capital set in a pointed-arched recess
Nave: quoined rubble heightened in ashlar, some late C11 herringbone walling flanking the tower.
C14 south aisle has chamfered plinth, offset band and buttresses to angles and between restored windows of 2, 3 and 4 lights having reticulated tracery in chamfered, square-headed recesses.
Clerestorey: C14, Y-tracery 2-light windows to bay 1 otherwise Perpendicular windows of 2 ogee lights in deeply- chamfered, square-headed recesses
C15 north chapel on left: chamfered plinth, moulded band, buttresses
early C14, heavily-restored 1872/3
Cusped 5-light east window with a wavy quinquefoil at the apex beneath a keel-moulded hood with head-carved stops.
Of 1873-4, the marble and tiled flour and ornate arch-braced roof with longitudinal rails carved with motto and vine trail.
rood screen the gift of William Adam , of 2 : 2 : 2 divisions with initials on the central doors: panelled dado with quatrefoils, carved mid-rail and ogee lights with cusped panel tracery, later cornice, Monuments: to north of chancel a freestanding monument to Frances ld.1818), wife of Bryan Cooke of Owston Hall: figure kneeling on tassel led cushion with crossed hands to her breast, it is signed 'CHANTREY / SCULPTOR / 1820'.
Opposite within an arched recess, that to Bryan Cooke depicts seated pensive figure facing east against a panel crested with anthemion motifs, signed 'CHANTREY : SC / 1830'.
Two other Cooke family wall monuments by Fisher of York.
to George Byard , it has panels carved with arcading, grenades and a horse.
Brass adjacent to western pier of south aisle depicts robed figures of Robert of Hatfield and wife Ada with a French inscription.
Another brass to William Adam on slab with arms and inscription (situated near northern choir stalls)