Interventions at Villa Sciarra aim at securing the slopes and managing surface and underground water, in order to allow the restoration of the existing buildings and historical furnishings. Over the years, the Janiculum walls surrounding Villa Sciarra on the eastern side have suffered various instabilities, including the collapse of the retaining walls in two specific spots:

• Landslide in Via Aurelio Saffi in the 1970s: This landslide was subsequently restored using the technique of soil nailing with shotcrete. The instability was caused by the sliding of the surface layers, known as pyroclastic layers, which overlap the clayey interlayers, also resulting in the formation of perched water tables. This phenomenon has been studied by the Italian Institute for Environmental Protection and Research (ISPRA) in its analysis of the Monteverde hill landslides of Via Aurelio Saffi and Via Dall'Ongaro, as well as by other previous studies.
• Landslide of the containing wall in Via Dandolo: the subsidence of the containing wall also affected some private properties. The cause of the instability is again related to sliding of the surface layers and clayey interlayers.

Groundwater containment and regulation works may be needed to ensure the safety of the terraces supported by the Janiculum walls. These interventions will aim to prevent future instabilities and ensure the stability of the surrounding embankments.