St Helen's has an aisleless nave with a large S transept, no tower but a bellcote on the W gable, and a chancel with N vestry. The chancel, facing the road, is neo-Romanesque work of 1850, replacing an 18thc. chancel, which in turn replaced the original. The nave is 12thc. and the transept dates from c. 1300. Construction is of coursed rubble except for the ashlar chancel. The restoration of 1850 involved the rebuilding of the chancel and vestry, the rebuilding of the N wall of the nave, and the addition of the bell-cote. There is a 12thc. chancel arch and N doorway.

The manor was held by Walter Giffard in 1087, no church is noted.

Now benefice of Stilton (St Mary Magdalene) with Denton and Caldecote, and Folksworth with Morborne and Haddon.

The chancel arch and doorway presumably belong together, and should be dated to the 2nd quarter of the 12thc. The volute capitals of the chancel arch are of the Ely Cathedral type with keeled leaves extending down to the necking behind the volutes. The arch profile of the N doorway is also found in the nave at Ely.