The chapel is located in what is thought to have been the Roman settlement of Durolevum, near the modern town of Faversham, in Kent, England.
[1] The floor of the structure was originally opus signinum, a hard waterproof concrete made with broken-down tiles or bricks, giving it a reddish colour.
As there is no villa or cemetery nearby, alternative explanations of the structure are that it was a Romano-Pagan temple or a small Christian shrine.
[5] After the Roman structure fell into disrepair, it is possible that a timber-built Saxon church existed on the site.
By the medieval era, a flint church was built over the remains of the earlier Roman building, making use of its surviving walls.