The church has a stone tower, rendered nave and chancel. There was a restoration in 1896; lively plastering in the chancel in the 1950s.

A priest's doorway to chancel, said to be round-headed with a single chamfer (Pevsner and Neave 1995, 424), is pointed.

Of the 12th century are one or two nave windows and a plain tub font; a length of label reused over the S doorway inside is also relevant to this Corpus.

In Doomsday Book Foston was a single estate held of William de Percy by Hugh. It was probably held by William of Arundel in 1166, and later by Roger of Arundel, who died before 1213 (VCH, II, 179).

There was a church at Foston in 1086. The advowson belonged to the lords of the manor (VCH, II, 186).

Window: compare the use of chalk with local Jurassic stone in arcades at Bempton.

Reset label: the label may have come from a doorway, or a chancel arch. The decorative pattern is fairly common in mid-12th-century work in the county, but at Little Driffield a blocked Gothic doorway repeats the beaded design.

Font: the ring of bricks, and the green staining, recalls the state of the font at Carnaby. They both need insulating from the rising ground water.