What makes it quietly remarkable is not its size but its possible function: the scholar Françoise Henry, who first recorded and then excavated it in the mid-twentieth century, concluded that it probably served as a forge rather than a home.

Henry noted the outline of the ruined stone building in 1945, describing how its northern walls ended abruptly over a retaining wall that skirted the slope below. She excavated the interior in 1946, though the results were never formally published. The structure was subrectangular, measuring roughly 2.9 metres east to west and just 1.5 metres north to south, with walls of upright stones still standing to about 0.66 metres. Two floor layers had been laid one on top of the other: the lower contained bones and shells, the upper bones and charcoal. Against the east end of the south wall sat a small hearth, and around it excavators found iron clinker, the waste residue left over from smithing or metalworking. An apparent air inlet in the east wall would have been consistent with a working forge, helping to draw a controlled draught across the fire. On the north side of the hearth, an upright stone with a hollowed or concave top was found, similar to one uncovered in another structure a short distance to the south. Henry judged that these features pointed away from ordinary domestic use.

Nothing of the structure is visible today. A scatter of low upright slabs running in a broken line to the south-west from the terrace retaining wall may mark where it once stood, but the building itself has disappeared entirely into the landscape of the mound.