Coastal erosion was as much a problem in the Middle Ages as it is today and could have forced the lord to move out of the motte and bailey to another manor a little further inland to the north.
It is quite clear that Aldingham has had a rich and interesting history, from its motte and bailey castle to its moated manor and missing town. It is a site well worth exploring, there is a public footpath that runs up to the motte for a slightly closer look or you could walk along the beach to see it from bellow. The moated manor is on private land but can be seen from the road and the motte. It is also well worth visiting Aldingham Church, a building that dates back, in part, to the 12th Century and has many interesting features.