1888, by William Butterfield. Butterfield's restoration completed the tower and added mosaic work in the nave and a vestry, but was generally held to be less sympathetic than the first by Scott. Today Today Saint Mary sub Castro is still a thriving church serving the Army and local people, and is the Dover Garrison Church. Description of the present church The 28-feet-high arches at the east and west ends of the crossing appear to be original, and their west faces are outlined by strip work of projecting tiles. A tall round-headed, stone-faced doorway (now blocked and with not much left of its original stripwork outline, but with its typically Saxon alternating horizontal and vertical slabs) gave access to the nave from the south. Unusual double splayed round-headed windows pierce the nave's north and south walls, and Scott (who found them during his restoration) suggested there were another pair near the west end of the nave's side walls. He saw this pair of windows, and putlog holes in the walls for supporting timbers, as evidence for a west gallery, for which space needed to be left between that pair of windows and the west wall. The church is a Grade I listed building. References External links St Mary sub Castro, Dover Castle, Dover A Church Near You. Retrieved 14 October 2007 Dover Museum article on St Mary de Castro Churches in Dover, Kent History of Kent Church of England church buildings in Kent Standing Anglo-Saxon churches 7th-century church buildings in England Diocese of Canterbury