Aligned NE-SW, Nave with slightly narrower Chancel, extended approx. 2 metres to NE in late C13.
The E window, late C13 and partly restored, is of 3 pointed lights under a 2-centred head, with moulded external and internal labels and headstops
In the centre of the N wall is a C12 window of one round-headed light, partly restored, with widely splayed jambs.
the eastern, late C13 and partly restored, is of 2 pointed lights under a 2-centred head
the western window is a 'low-side' of the first half of the C14, much restored, of one trefoiled and transomed light under a 2-centred head.
Between these windows is the original C12 doorway, with semi-circular arch springing from chamfered abaci.
the easternmost is of c.1340, restored, of 2 trefoiled lights with a quatrefoil under a 2-centred head
Between them is the N doorway, early C13, with square head on shouldered jambs, blocked with C18 brick.
the eastern is early C15, of brick, partly restored
There are 2 bells, the second by Robert Burford, c.1400, inscribed 'Sancta Katerina Ora Pro Nobis'.
In the Chancel there are 3 brasses: (1) in the NE corner, partly covered, with 2 shields and indent for inscription plate, early C16 (2) to Henry Fortescue, Esquire of the Body to Queen Elizabeth, 1576, figure in full armour with 3 groups of 10 children below, marginal inscription and 4 shields of arms (3) to Mary, successively wife of Sir Edward Darrell, Philip Maunsell and Henry Fortescue, 1598, figure of lady with inscription plate and 4 shields of arms.
Against the N wall of the Chancel there is the upper part of a coffin lid, C13, with chamfered edges and cross in low relief, and 4 super-imposed circles
In the Chancel there is a floor slab to Elizabeth, wife of Mordant Cracherode, 1693, with shield of arms.
On the wall there are monuments (1) to Sir Edward Bullock, 1644, panel of black marble with white marble architrave, surmounted by a cartouche of arms (2) to John Bullock, 1809, and his wife Elizabeth, 1793, female figure and double portrait medallion in low relief, in white marble, backed by black marble with shield of arms, in the Neo-Greek style.
On the S wall of the Chancel there is a monument to John Bullock, 1711, and his widow Hannah Maria, 1759, sculpture of a seated female figure holding a ring, with inscribed oval shield, flanked by urns, backed by a grey marble obelisk surmounted by a painted shield of arms, by Peter Scheemakers.
On the S wall of the Nave there are monuments (1) to the Reverend Dr. Richard Bullock, 1754, and Whalley Bullock, 1767, and (2) to the Reverend Robert Parkinson, 1791, oval marble tablet.
On the W wall there is a monument to Elizabeth, widow of the Reverend Foote Gower, 1797, white and grey marble tablet with draped lamp.
In the NE window of the Nave there is C14 glass, spire of canopy with foliated border and shield of arms.