The enclosure measures just 4.1 metres across, and tucked against its north-western side is a complete clochaun, a corbelled dry-stone hut constructed without mortar, with the upper courses of stone gradually overlapping inward until they close to form a beehive-shaped roof. This particular clochaun measures 2.1 metres in diameter, barely large enough to shelter a single person. Structures of this kind are scattered across the Dingle Peninsula, but what gives this example its quiet interest is the combination: the enclosure and its attached cell appear to have survived as a complete unit.

The site was recorded by R. A. S. Macalister in 1899, placing its documentation in the earliest systematic phase of Irish archaeological fieldwork, a period when scholars were beginning to catalogue the dense concentration of early medieval and prehistoric remains that the Corca Dhuibhne region, the ancient territory covering much of the Dingle Peninsula, preserves in exceptional numbers. Clochauns are generally associated with early Christian monastic activity in Ireland, where monks or hermits would occupy small, isolated cells as part of a life of ascetic withdrawal, though some examples may have had secular or agricultural uses. The enclosure surrounding the clochaun at Fán suggests a demarcated space, perhaps a small monastic plot or a sheltered working area, though the evidence is too slender to press any interpretation too hard.