The road runs roughly north-north-west to south-south-east, and the well occupies the eastern side of that cut, sheltered by the earthen bank above it. What marks it out is not its size but its persistence: known locally as the Blessed Well, it continues to attract offerings, the kind of small tokens left by people seeking favour or giving thanks, a practice with roots stretching back through Christian and pre-Christian tradition alike.

The well itself is fed by a pipe, with a second pipe carrying the overflow away to the north-west. Over it sits a modest rendered canopy, arched and carefully proportioned, measuring less than a metre in any direction, with an arched niche set into the back wall. The scale is intimate rather than monumental, more like a wayside shrine than a grand ecclesiastical structure, which is in keeping with how holy wells tend to function in Irish rural life: as local, personal places rather than pilgrimage destinations on any formal circuit. The offerings recorded there confirm that veneration is ongoing rather than historical, which places Cullenstown in a long and still-living tradition of well worship found across Ireland, particularly in Leinster and Munster.