Less noticed is what lies at street level, or below it. During excavation work in 1996 on the eastern side of Friar Street, archaeologists uncovered a well believed to date from the seventeenth century, a quiet reminder that the town's history extends well beyond its more celebrated monuments and into the ordinary infrastructure of daily life.

The find was recorded by O'Donovan in 1997. A seventeenth-century date would place the well in a period of considerable upheaval in Cashel and across Tipperary more broadly, spanning the Cromwellian campaigns of the 1650s and the slow, uneven recovery that followed. Wells of this kind were essential urban features, serving households and tradespeople in the absence of piped water, and their construction often reflected the relative prosperity or necessity of a given neighbourhood. Friar Street itself takes its name from the mendicant orders who had a significant presence in Cashel, and the street's eastern side, where the well was found, would have been a busy part of the post-medieval town.