This is an exhaustive architecturtal and structural profile about building story of the domus: the preexisting testimonies of sacred character of arcaic-classical period, then ellenistic and imperial period, finally the last phases after earthquake, between 62 and 79 AD. In following chronological moments are unterlined the most qualifying aspects in different periods of execution: the pre-existing sacred area; the protocasa rising, based on a probable ellenistic temenos; possible inspiring models of reference; the following loss of functionality; the sanctuary area monumentalization; amplification and fusion with the adjoining house n.22; the importance of productive and commercial structures in the abode spaces distribution; the armonizing decorative testimonies from II century before Christ to last restoration after earthquake.
Keywords: sanctuary, monumentalization, fusion by merges, Epidii, eschara
