The circular hut site at Knockans measures 8.5 metres in internal diameter, defined by a stony bank between two and three metres wide and averaging half a metre in height. That modest profile is easy to walk past without registering what it is, yet the interior remains remarkably level, and the stones that fill it hint at a structure once substantial enough to be recorded on Ordnance Survey maps of both 1842 and 1920.

What makes the site particularly interesting is what lies beneath it, or rather, extending from it. A souterrain, an underground passage typically cut or built into the earth and used in early medieval Ireland for storage, refuge, or both, runs outward from the south-south-western edge of the hut. The combination of a surface dwelling and an attached souterrain is a recognisable pattern in Irish archaeology, suggesting occupation during the early medieval period, though the site sits within a much broader field system that appears to span multiple periods of use. That layering of human activity, different generations working and dividing the same plateau, gives the place a depth that its low, grassy silhouette does not immediately suggest.