Archaeological test pit excavations in May 2015 followed up from the 2014 excavations in Sawtry and a further 12 test pits were dug, to bring the total so far to 24. The test pits were excavated by 48 Year 9 students from Cromwell Community College, Swavesey Village College, Sawtry Village College and Stanground Academy and they were again sited through the town, with a large number this year excavated in the south.
An additional single sherd of Romano-British pottery was excavated from SAW/15/6, also in the south of the town and with the sherd recorded in 2014 further supports that a large part of the town would have likely been open fields during the Roman period. Four test pits in 2015 however yielded evidence for Late Anglo Saxon activity, but again the majority were around the Fen Lane area with also for the first time activity was identified to the north of the current church (SAW/15/2). These areas of settlement continued through the high medieval period, as well as extending further south but was followed by a sever contraction and shift of the occupation to the north of the location of Sawtry Community College only. This would have been due to the various socio-economic factors (including the Black Death) during the 14th century. The settlement remained small through the post medieval, but recovered after the 14th century and core of the village layout was present by the 19th century.