St Mary's Parish Church is located on St Mary's Road on the western edge of Hay-on-Wye.

The church has early C12 origins. The West tower was added in C15, but disused and ruined ca. 1700. Rebuilt by Edward Haycock the elder in 1833/4. The chancel was enlarged in 1866, possibly by T. Nicholson architect of Hereford.

St Mary's Parish Church is a grade II listed building.

Source: Cadw listed buildings database: Ref: 7410

Photographed during aerial reconnaissance on 10th October 2008.
L. Osborne, 10th October 2012.