By 1837, when the Ordnance Survey mapped this part of County Kildare at six inches to the mile, the house at Ballyraggan was already being recorded as a ruin. That small parenthetical on the map, "in ruins", suggests the place had been abandoned long enough for its decline to be unremarkable, simply a fact of the landscape rather than a recent loss.

Garner and Craig, writing in 1976, identified the remains as probably those of a seventeenth-century house, accompanied by a barn. What survives on the ground bears this out in fragmentary form: extensive foundations, some upstanding wall sections, and building material that tells its own quiet story. The dressed limestone points to a degree of care and investment in the original construction, while the presence of red brick suggests either later repair work or secondary elements added to the structure over time. A house of this period in rural Kildare would likely have belonged to a settler or established landowner during a century of considerable upheaval in Irish land ownership, though no specific owner is recorded for this site. The barn alongside it is a practical detail worth noting; it places this not as a purely domestic residence but as the centre of a working agricultural holding.