There are a variety of physically similar sites to Dùn Èistean around the coast of Lewis and the southern Western Isles, many of which have been occupied or used at the same time. There is also evidence from these sites of activity in the Iron Age or earlier prehistoric periods, and it is highly likely similar early evidence is awaiting discovery at Dùn Èistean below the later Dun and turf buildings.
There are various geographically comparable sites to Dùn Èistean along the coast of Lewis and the southern Western Isles, many of which have been inhabited or utilized concurrently. Evidence from these locations indicates activity during the Iron Age or earlier prehistoric periods, and it is highly probable that similar early evidence awaits discovery beneath the later Dun and turf structures at Dùn Èistean.