The two ring-slot trenches, each roughly seven metres in diameter, represent the method by which the upright timber posts of a roundhouse were set into the ground; over centuries the wood rots away entirely, leaving only the slot in the soil where the wall once stood. What makes the find at Baysrath quietly remarkable is the density of occupation it points to: here, in a roughly 1.8-hectare area, traces of human activity accumulated from the Late Neolithic through to the early medieval period, layer upon layer of different peoples making use of the same ground across perhaps three thousand years.

The site came to light during excavations carried out between 2006 and 2007, ahead of road improvement works on the N9/N10 Kilcullen to Waterford route. That kind of infrastructure project, frustrating for travellers and disruptive by nature, has quietly transformed Irish archaeology over the past few decades; the legal requirement to excavate in advance of development has produced a remarkable body of knowledge about ordinary, non-monumental settlement. At Baysrath, the two overlapping houses were found to closely resemble structures recorded in the north-eastern part of a nearby Iron Age palisaded enclosure, a defensive or communal compound defined by a timber fence or wall, located to the south of the excavation area. The similarity in form led archaeologists to interpret the Baysrath houses as broadly contemporary with that enclosure. A further house was identified approximately thirty metres to the west, suggesting this was not an isolated dwelling but part of a small, dispersed settlement of roundhouses, their inhabitants living in the shadow of, or in association with, the larger enclosed site nearby.