The medieval features on Thanet Earth dated to between the mid-eleventh century to the early part of the fourteenth (possibly extending to AD 1350). The activity is primarily agricultural in nature with significant elements of domestic occupation. A site wide system of enclosures appears to be intimately related to various trackways across the site. The activity around these enclosures has been grouped into a number of Medieval ‘sites’.

Site 18 was located about 50m south of Site 17, but was only very partially revealed in the site area. It primarily consisted of a single sunken-featured structure (SFB 69), which cut a ditch alignment. The ditch, was undated but is likely to be medieval due to its relationship with the subsequent structure. The ditch was aligned with Seamark Road (Trackway 30) and terminated just under 3m south of the later building. It was very shallow and contained no artefactual evidence but could date to the middle phase of medieval activity at Thanet Earth (Phase 3) like many of the earlier enclosures to the north. SFB 69 was the southernmost medieval building found adjacent to Trackway 30, and only partially exposed. It consisted of a large sub-rectangular cut, 11.4m long, in excess of 3.3m wide and 0.4m deep aligned north-east to south-west, set parallel to the original trackway and approximately so to the earlier ditch. A sub-rectangular cut extended from the main cut from the north-west corner of the building representing a threshold for an entrance. The base of the feature contained a thin trample deposit of clay silt which yielded a limestone spindle whorl and fragments of a stone mortar. A similarly shaped limestone whorl from Canterbury dated to the early fourteenth century. The bulk fill of the cut yielded medieval pottery (AD 1200–1275), peg tile, daub and an iron object. There was little indication of its function apart from the spindle whorl and mortar in the primary fill which would suggest activities such as wool spinning and food preparation. A domestic building seems one possible interpretation. The underlying ditch was an isolated feature, but its position indicates it was related to Trackway 30, possibly the remnant of a side drain, as a similar feature was found to the south. However, this is unlikely as the structure would have blocked the route and it would seem that this. (1)(information summarised from source)

<1> Canterbury Archaeological Trust, 2023, Beneath the Seamark: 6000 Years of an Islands History (Monograph). SKE55405.