Former excavation campaigns proved that the archaeological situation underneath the actually excavated areas of the “Casa della Diana Arcaizzante” is highly complex, with the presence of either underground structures belonging to the proper houses infrastructure and/or structures most likely associated to earlier constructions. Out of the former are striking for their importance components of the hydraulic system, such as water pipes at different levels and underground storage tanks. Extended knowledge on the latter (wall orientations, unearthed floors, stairs or basements etc.), would allow much deeper insight on different phases and sequences of construction in the area under investigation. Another problem was to resolve whether deterioration of excavated structures, especially walls, is ongoing or whether consolidation measures carried out by now can be considered to be successful.

The work carried out aiming to contribute resolving the above mentioned situation was the following:

1. Geophysical prospection making use of ground penetrating radar (GPR)in selected floor areas of the house.
2. Three dimensional documentation using laser scanning (3DLS) of the small yard and surrounding wall structures where the statue of Diana Arcaizzante was found.
3. Restoration of the mortar used to consolidate the altar piece in the yard (viridarium).
4. Study and cataloguing of materials found in former excavations of the house.

GPR data achieved during the 2011/2012 campaign suggested the presence of several pipe systems and deposits associated with the water supply of the domus, as well as additional hydraulic structures related to the discharge of waste water. The neuralgic center of the water supply system is the previously discovered impluvium in the Tuscan atrium.In another zone, structures possibly belonging to earlier constructions could be also identified. This data is the base for targeting future archaeological interventions.

3DLS provided a high resolution fully coloured three dimensional model of the viridarium of the house, partly excavated in the 2010 campaign and therefore not included in the scanner data taken in 2007. Comparison of the actual and former 3DLS data revealed that neither the patios walls nor others, in particular those delimiting rooms number 14 and 19 to the adjacent street (western side of the house), suffered significant deformation within the mentioned timespan.
All this data and plus the extensive documentary evidence collected in previous excavations kept in Pompeii’s storage magazines was adapted for presentation to the general and specialized public through the projects website at: http://www.dianaarcaizante.com/.