They are not. What survives at Tullamoylin are the earthwork traces of a community that once had a castle, a watermill, a town, and enough organised land to warrant its own field systems. House platforms mark where buildings once stood; a sunken way, a hollow worn into the ground by generations of feet and wheels, traces a route that no longer leads anywhere.

The settlement had a documented existence into the early seventeenth century, when an Inquisition into the property of a Gerald Grace listed the castle, towne and lands of Tollowmoyline, a form of the placename that still echoes in the modern spelling. Earlier than that, the Down Survey, the great Cromwellian-era mapping project of the 1650s, recorded both a castle and a watermill on the site, suggesting the place retained some functional significance even as its medieval life was drawing to a close. The probable tower house, the compact fortified residence typical of late medieval Gaelic and Anglo-Irish landowners, still stands or partially stands, surrounded on its western and northern sides by the earthworks of the settlement it once dominated. To the south, according to the landowner, further earthworks existed until relatively recently, but they have been levelled, quietly erasing another portion of whatever pattern the full settlement once made across the ground.