The Book of Llandaff refers to the existence of a church, or monastery, on this site in about 735. The existing St. Peter's Church, now substantially rendered and whitewashed, consists of a nave with a separate chancel, a vestry, a tower to the west, and north and south porches. The oldest parts of the building, including the herring-bone masonry in the north wall of the nave, may have an Anglo Saxon origin or, alternatively, date from the 12th century. The nave seems to have been lengthened during the 13th century, perhaps when the tower and chancel were built. A small window in the southwest corner dates from the early 14th century. The exposed Old Red Sandstone walling in the chancel dates from the 14th century; the chancel has a sanctuary window on each side, a priest's door, and an ancient stone bench outside. A royal coat of arms dated 1711 is painted on a board inside the church.
The north porch and vestry were added in 1824, and the whole church was restored in 1861–62. Inside the church are five stained glass windows.
The church is too low-lying to prevent winter floods from entering the building, and brass plates near the chancel arch record the heights of notable floods. A new balcony has been constructed at the back of the church so that perishable items can be kept above the floodline. This balcony is decorated with a beautiful oak screen. The church had a rectory, which was later known as Dixton Cottage.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.