Greywell is a village in NE Hampshire, 6 miles E of Basingstoke, on the River Whitewater (a tributary of the River Blackwater). The church stands at the S end of the village, and has a nave, a W tower with a shingled bell stage and a pyramid roof, a N porch and a chancel. The nave is of c.1200, with N and S doorways, chancel arch and tower arch of that period, and is cement rendered. The chancel itself was rebuilt by Ewan Christian in flint in 1870-71. The lower stage of the tower is of brick and flint with with massive diagonal buttresses. This looks 17thc, although the lowest courses are of rough stone blocks and may survive from the earlier tower suggested by the tower arch. Romanesque features recorded here are the two nave doorways, the chancel arch and the tower arch.

Greywell is not recorded by that name in the Domesday Survey, where it was probably included under Odiham. The earliest mention of the manor is in 1167, when it was held by one Richer (see Willoughby). Odiham was held by Earl Harold before the Conquest and by King William in demesne in 1086, when it was a vast manor of 80 hides. In 1204 King John granted the issues of the manor of Greywell to Alan Basset, and after Alan's death in 1233, Henry III granted the estate, then described as 'late of Gilbert de Aquila', to Gilbert Marshal, Earl of Pembroke. The Earl later granted Greywell to his niece Isabel on her marriage to Alan Basset's son Gilbert. For the later medieval history of the manor, see the Victoria County History.

The church was formerly a chapelry of Odiham, and the vicar of Odiham still kept a priest there at the Reformation.

The simplest of sculpture of c.1200, with the only carving to be seen on the dogtooth label of the S doorway, which is almost identical with the N doorway at Up Nately, just over a mile to the west.