Monument record LCS 150 - Medieval Settlement at Sizewell, Leiston

2014: An open area excavation of 3,700sqm was completed at Sizewell, the once burgeoning medieval market town which has been reduced to a fishing hamlet by erosion and inundations by the sea. The archaeological features represented the pinnacle of the settlement's westerly expansion, which peaked at the turn of the 14th century, and attested to a period of 'industrial' activity centred on a freshwater marsh. The site produced evidence of workshop-type buildings, ovens, timber-lined wells and sunken water-tanks together with a large assemblage of finds. The cut-off in the archaeological record occurs during the first half of the 14th century; this is abrupt and coincides closely with what is historically the start of Sizewell's decline. The finds assemblages reflected beach hinterland location and included fishing equipment (hooks, weights, and possible net fragments) along with the bones of both freshwater and marine fish species. Of particular pertinence to this coastal milieu was the discovery of sections of planking from a small inshore boat; 6-9m long. The boat's timbers were sourced from Ireland and were from trees felled between AD1241 and AD1266. In addition to the archaeological evidence, there is an unusually complete set of medieval land records which date back to the period, and include the area, sampled by the excavations and which indicate that the land to the west of the town was divided into a high proportion of small copyholds. The site, together with the neighbouring excavations (LCS148), has provided a relatively large sample across several medieval plots (S1).

Included in the Proceedings of the Suffolk Institute of Archaeology and History annual round up of individual finds and discoveries for 2008 (S2).

2008: News article in British Archaeology detailed the finding of reused medieval boat timbers to line one of the water pits. The sections were built with the same technique used for the royal ships at the Sutton Hoo Anglo-Saxon burials. The new finds have rows of rivets still firmly fixed to oak planks, with wool-like fibres or "luting" sealing the joints. The vessel had been clinker built, with the planks riveted together before being attached to the frame with wooden pegs (S3).