During groundwork associated with that project, two spreads of fire-cracked sandstone fragments were uncovered in dark, silty clay at Priestsnewtown, each one the remnant of what archaeologists identified as a possible fulacht fia.

A fulacht fia is a type of prehistoric cooking site, typically consisting of a trough filled with water that was heated by dropping fire-heated stones into it; the stones, repeatedly cracked by thermal shock, accumulated around the trough over time as a distinctive mound of burnt and shattered rock. The two sites at Priestsnewtown, catalogued as part of Excavation Licence 04E0267 and reported by Wiggins in 2007, are modest in scale but consistent with that pattern. Site 1 measured approximately six metres by three metres and was left undisturbed by the construction work itself. Site 2 was slightly larger at roughly six metres by three and a half metres, though a pipe trench cut through it during building works and in doing so exposed a pit measuring about two metres by 0.9 metres and roughly 0.2 metres deep. That incidental exposure was, in its own way, fortunate; without the trench, the pit might have remained unrecorded entirely.