I shared the apartment with an incredibly sweet-hearted, gregarious and generous Venetian flatmate. His landlords in turn lived in the flat below us with their two children.
Calle del Volto, off the Fondamente delle Procuratie, Dorsoduro
I follow InVenice (the official booking agency for the Associazione Veneziana Albergatori) on Facebook. Each day they post an Instaweather snap of a Venetian scene with the weather forecast. It was so lovely to find a photo of my old building on 24 November 2013:
Calle del Volto, off Fondamente delle Procuratie, Dorsoduro Venezia
Here is a view of the complex on Google maps - you can just make out the arches at either end of the blocks. The yellow building to the right of the map on Fondamente Cereri is where the poet Diego Valeri lived (click here for more about Diego Valeri). The complex on top left hand corner of the map is the prison.
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If you want to read more about this place, Dorsoduro 2410-30 (Fondamenta Cereri and Fondamente delle Procuratie) is described on page 67 of Egle Renata Trincata's A Guide to Venetian Domestic Architecture.