Two-bay crenellated chancel with mock Tudor 3-light tracery and placing earlier lancets and sedilia.
upper part of tower later with 2-light louvred C15 foiled square headed windows.
Saxon cross- ing arches, and masonry in most of tower and North transept makes this the only evidence of a Saxon cross plan in County Durham.
Three bay crenellated nave with clerestory - C15 - and aisles :- Six 3-light windows divided into pairs by wall buttresses.
Fragments of an Anglo-Saxon cross in the South East pier.
A splendid C14 effigy near South-West pier, probably Roger Fulbrooke, died 1337, whose sarcophagus from Grindon Abbey is outside Thorpe Thewles church
Nave with late C12 pointed arcade, round piers with octagonal caps
an ornate decorated foliate cap of earlier C12 satin North-West pier at West end of Nave.
In the 1877 porch are fragments of reused chevron and billet moulding and the reset, headless body of female figure.
Modern woodwork (pews and pulpit and rails) by "Mousey" Thompson.