11 test pits were excavated at Great Amwell in 2013. Very little was found, with the exception of GAM/13/7, which contained pottery of late Iron Age, Late Anglo-Saxon and medieval dates. The Iron Age pottery, although comprising just a single sherd, is sufficiently unusual to be noteworthy as possibly indicative of intensive activity nearby. The single sherd of St Neots Ware from this pit is also ambiguous, as although this not normally be considered enough to indicate settlement in the vicinity, pottery of this date has been found to be generally uncommon in test pits in Essex and south Hertfordshire, so it is consider more interesting that might normally be expected. In contrast, the fourteen sherds of high medieval pottery from this same pit are certainly sufficient to infer contemporary settlement in the immediate vicinity, although these provide the only evidence for settlement of this date found in 2013 in Great Amwell. The recovery of two sherds of late medieval pottery from the same pit hints at the possibility that activity continued into the 14th – 16th century, but may indicate that the site was abandoned thereafter as no post-medieval material was recovered and only three small sherds of 19th – 20th century pottery. The only other pit excavated in Great Amwell in 2013 which produced medieval material was GAM/13/08, adjacent to the church, which yielded a single small (2g) sherd of late medieval transitional ware.
Although only a small number of pits have been excavated and the evidence from these is very limited, it currently does seem as if there was a settlement, perhaps very small, east of Catherly lane south of the church. Very little post-medieval material was recovered, with the creation of the New River in the 17th century seemingly having little or no impact on the settlement.