[2] A church, probably built of wood, is recorded in the Domesday Book[4] of 1086 when Azor, one of the most powerful Anglo-Saxon landowners at the time of Edward the Confessor, is listed as owning the land.
On his death Azor gifted his lands including the church at Ash to Chertsey Abbey (also dedicated to Saint Peter) in return for prayers for his soul.
[5] The "very good" south door with its "very delicate" carving attributed to stonemasons associated with Chertsey Abbey[6] and its adjacent walls are c1170 with some 13th-century remains in the chancel.
[1][7][9] Inside, the church has a tiled floor with a four-bay arcade with round columns to the north aisle and a 14th-century chalk chancel arch.
The stone pulpit is of the 19th century, while the 17th-century octagonal wooden font with its lead-lined bowl stands on a central stem of eight columns.
On the south wall of the old chancel is a brass tablet to Thomas Manory dated 1516, while below is another to Anne Vyne, his daughter and heir.