The Noeddale Necropolis, located a short distance from the town, consists of six hypogea, three of which were excavated on a slightly sloping limestone slab, one on a low wall below and two others on higher rock faces. Two hypogea are preceded by short dromoi, and three Domus reproduce architectural features borrowed from civilian dwellings.
In the panorama of studies on hypogeic architecture in Sardinia, the discovery in 1955 of the Tomb of the House, which consists of 11 rooms, constituted a milestone: in this hypogeum the rectangular-plan hut is represented, a type that, unlike the circular ones, is less well known. In the interior, a double-pitched ceiling is reproduced very effectively, with a beam transverse to the room, and there is, in a third semicircular room, a semi-circular ceiling with rafters.
In another domus of the necropolis, the Tomb of the Spirals, two pillars were spared in the rock of the main cell, ideally supporting the ceiling truss. Examples of the association of corniform motifs with double-spiral motifs are also recognized in this domus, hence the name.
