When construction work began in the late 1970s, a number of children's bones and skulls were uncovered beneath the ground. They were carefully reburied some 26 metres to the east of the new house, and the work continued.

What makes the site quietly unsettling is its near-total invisibility. The landowner came to believe that the burial ground likely extended across much of the plot on which the house now stands, yet there were no grave-markers of any kind to be seen. This absence is characteristic of a cillín, the Irish term for an unconsecrated burial ground used for unbaptised infants and, in some cases, other individuals excluded from formal Church burial. Such sites are found across Ireland, often in marginal or liminal landscapes, and were rarely marked in any permanent way, their locations passed down through local memory rather than stone or inscription. Within about 16 metres to the south-west of the burial ground lies a souterrain, an underground stone-lined passage typically associated with early medieval settlement, suggesting that this corner of Ballyboggan has been a place of human activity for a considerable stretch of time. Whether the two features are directly related is unknown, but their proximity is a reminder that the ground beneath ordinary farmland often carries far more than is visible at the surface.