Longford is a village in the Derbyshire Dales district, 8 miles W of Derby and 6 miles S of Ashbourne. The church stands in the grounds of Longford Hall, N of the village centre. It consists of a 4-bay aisled nave with a clerestorey and a S porch, a 5-bay chancel and a W tower. The nave arcades were originally 12thc, but both were modified in the early 14thc, and only the N arcade retains its Romanesque capitals and arches. The aisles were widened in the 14thc too, and the chancel was replaced. The clerestorey is 15thc work as is the W tower. Construction is of sandstone ashlar and (N aisle) rubble.

Longford is not recorded in the Domesday Survey, but Cox (1879, 185) suggests that it corresponds to Bupton where 5 carucates were held by the Bishop of Chester, along with a church and a priest, and 6 bovates were held on 1086 by Elfin from Henry de Ferrers. About the year 1145, Nicholas de Gresley and his wife Margaret de Longford gave the advowson of the church of Longford to Gresley Priory, founded by his uncle William de Gresley.

The curious offsetting of the arcade towards the aisle is also seen Brassington, 10 miles N of Longford. Dating the arcade is a matter of guesswork, bit despite the plainness of the capitals and imposts, the sheathing of the cones and the waterholding bases both suggest that the arcade is no earlier than 1150.