Excavations carried out during the restoration of the theatre, in 2002, revealed the existence of a large building aligned on an ample terrace to the west of the monumental temple-theatre complex. Excavations in the following years brought to light a large atrium house contemporary with the temple (end 2nd century BC). The building, directly linked to the area of the sanctuary and entered by an open passage in the precinct wall, has the distinctive feature of having at the back, in place of the peristyle, a great portico with two naves containing the bases of ex-voto, altars, votive objects and a dedication in Oscan. The internal nave was in part occupied by closed rooms: a sacellum, a thesaurus and kitchens for ritual banquets; along the walls are the remains of walled benches for the display of the votive objects. The entire domus complex with the portico represents the first example of a domus publica whose plan is completely preserved, along with some elements relating to the standing structures (columns with capitals).

The dedication in Oscan refers to a deity who can be recognised as Ops Consiva, given also the presence in the sanctuary of a slave called Opalis. The sacellum with an altar in the internal nave of the portico behind the domus, therefore, must have been dedicated to Ops Consiva, who had the sacrarium in the domus publica, as she had at Rome in the Regia.

Furthermore, another dedication in Oscan, discovered in the past in the area of temple B, attests the cult of Vittoria. In Ops and in Vittoria, therefore, it is possible to recognize two of the divinities which formed part of the triad to which the largest temple of Pietrabbondante was dedicated.