What remains is a single dot on a map made nearly four centuries ago, and the reasonable guess that it sat somewhere near the Fair Green of the village. That combination of presence and absence, a documented building with no traceable footprint, is more common in the Irish historic record than most people realise, and Kilsallaghan offers a quietly instructive example of how much has simply gone.

The evidence comes from the Down Survey, the ambitious mapping project carried out between 1655 and 1656 under the direction of William Petty. Commissioned in the aftermath of the Cromwellian conquest, the survey was designed primarily to facilitate the redistribution of forfeited Irish lands, and it recorded settlements, boundaries, and terrain across the country in considerable detail for its time. The mark indicating a dwelling at Kilsallaghan is consistent with a structure dating to the sixteenth or seventeenth century, though the survey itself does not elaborate on who lived there or what the building looked like. The likely proximity to the Fair Green, a space traditionally associated with markets and community gathering in Irish rural settlements, hints at a degree of local significance, but nothing more specific can be said with confidence. The entry in the historic record was compiled by Geraldine Stout and uploaded in August 2011.

Kilsallaghan itself is a small and quiet parish, and the Fair Green area provides the most plausible reference point for anyone curious enough to visit. The landscape has changed considerably since the mid-seventeenth century, and there is nothing visible above ground to indicate where the house may have stood. A visit here is less about seeing something than about thinking through absence, standing in a place where a building was recorded, probably used, and then erased without ceremony or explanation. The parish church of Kilsallaghan, which has its own long history, gives some architectural grounding to the area if you are orienting yourself on arrival.