The earliest recorded rector of Budock Parish was John de Plesseto in 1207, although the parish of St. Budoc, in the manor of Treliever, was mentioned in the Domesday Book of 1085. Budock Parish is, therefore, considerably older than its larger neighbours of Falmouth (town founded by Sir John Killigrew in 1661) and Penryn (founded by Bishop Simon in 1216).

The oldest documented boundary was written up in an old Budock Vestry Register on 24th May 1677, as " West from Mainporth to Penwarne, to a rocke that lyes in the lane northwards from the white wall, and from thence to a rocke in Troune Moore, which lyes between Constanton, Mawnon and Budocke, from thence to an old lane which joins with Rosecolas, from thence to a river that comes from James Davas, his mills called Anter Water, which devids Budocke and Mabe, and from thence to the Colledge".