John Rennie's scheme to defend St Mary's Church, Reculver, founded in 669, from coastal erosion is abandoned in favour of demolition, despite the church being an exemplar of Anglo-Saxon architecture and sculpture.

John Rennie was a Scottish civil engineer who designed many bridges, canals, docks and warehouses, and a pioneer in the use of structural cast-iron.

St Mary's Church, Reculver, was founded in the 7th century as either a minster or a monastery on the site of a Roman fort at Reculver, which was then at the north-eastern extremity of Kent in south-eastern England. In 669, the site of the fort was given for this purpose by King Ecgberht of Kent to a priest named Bassa, beginning a connection with Kentish kings that led to King Eadberht II of Kent being buried there in the 760s, and the church becoming very wealthy by the beginning of the 9th century. From the early 9th century to the 11th the church was treated as essentially a piece of property, with control passing between kings of Mercia, Wessex and England and the archbishops of Canterbury. Viking attacks may have extinguished the church's religious community in the 9th century, although an early 11th-century record indicates that the church was then in the hands of a dean accompanied by monks. By the time of Domesday Book, completed in 1086, St Mary's was serving as a parish church.

Coastal erosion is the loss or displacement of land, or the long-term removal of sediment and rocks along the coastline due to the action of waves, currents, tides, wind-driven water, waterborne ice, or other impacts of storms. The landward retreat of the shoreline can be measured and described over a temporal scale of tides, seasons, and other short-term cyclic processes. Coastal erosion may be caused by hydraulic action, abrasion, impact and corrosion by wind and water, and other forces, natural or unnatural.

Anglo-Saxon architecture was a period in the history of architecture in England from the mid-5th century until the Norman Conquest of 1066. Anglo-Saxon secular buildings in Britain were generally simple, constructed mainly using timber with thatch for roofing. No universally accepted example survives above ground. Generally preferring not to settle within the old Roman cities, the Anglo-Saxons built small towns near their centres of agriculture, at fords in rivers or sited to serve as ports. In each town, a main hall was in the centre, provided with a central hearth.