Built by the Montelli family, Averardo Vault stands like a heavily guarded fortress on the outskirts of the city. Within its walls lies the family's vast collection of treasures, including precious metals, artworks, and rare Echoes. The vault also provides public services such as secure storage for valuables, appraisals, and acquisition of rare collections.

From in-game description:

A vault built by the Montelli family on the outskirts of the city. Within its walls lies the family's vast collection of treasures. The vault also provides public services such as secure storage for valuables, appraisals, and acquisition of rare collections.

The vault, controlled by the Montelli Family, houses an exquisite collection of rare Echoes and artwork. Surrounded by natural barriers and perched atop a high vantage point, it offers a breathtaking view of Nimbus Sanctum.

Inside, the vault features numerous depositories guarded by a formidable array of Echo Guards and advanced security devices, making it the safest and most impregnable place in Rinascita. It defies any ordinary means of intrusion.