The chapel stands in the churchyard of St Peter's, Prestbury, to the SE of the church. It is a simple two-cell stone building dating in its present form from 1747, in which year it was restored by Sir William Meredith of Henbury. It incorporates on its west facade 12thc. sculpture in the form of a doorway and a row of figures above, but the rest of the building is 18thc. work. The original chapel is assumed to have been built as the parish church in the 12thc., and when its successor, the present parish church, was begun in the 1220s or 1230s, it was retained as an oratory. By 1592, when it was sketched by Randle Holmes, it was ruinous and roofless. An inscription on the W gable records the restoration of 1747 in exchange for which the Merediths were granted rights of burial inside it.