The date of the present church is unknown, but it is mentioned in deeds of patronage. In AD 1035 Robert of Normandy confirmed the patronage of the church to the monastery of Montivilliers, which shows that the church was built before that date. The church is unique in the Channel Islands in having one of the very few surviving medieval chapels. Early in the 12th century it became a parish church, so additions were made, and in the 14th–15th centuries, the roof was raised 75cm higher to a Gothic pitch. The roof of the Fishermen's Chapel was raised at the same time.