Deserted medieval settlements are among the more quietly unsettling features of the Irish landscape. They mark places where communities once farmed, built, and organised their lives, and then, for reasons that varied enormously across time and region, simply stopped. Abandonment could follow plague, famine, land consolidation, the clearances of later centuries, or the slow drift of population toward more viable ground. What remains is typically a scatter of earthen banks, collapsed walls, ridge-and-furrow cultivation traces, and occasionally the ghost outlines of individual house plots.

The placename Ballynacourty derives from the Irish Baile na Cúirte, meaning something close to "townland of the court" or "of the mansion", a name that hints at some form of earlier settlement focus, possibly a fortified house or a local administrative centre of the medieval period. Galway as a county contains numerous such deserted sites, many of them connected to the disruptions of the fourteenth and fifteenth centuries, when a combination of the Black Death, climatic deterioration, and political instability reshaped rural settlement patterns across much of western Europe and Ireland alike. Without more specific documentation for this particular site, the precise period of occupation and the circumstances of its desertion remain open questions.