In my last week in Venice, I bought this excellent little publication, in a bookshop in Dorsoduro (Libreria Toletta). It covers domestic architecture in Castello and Dorsoduro, from the 12th to the 18th centuries. How I wish I had bought it earlier in my stay! Each of the featured dwellings has a brief description, with line drawings, and often a sketch of the interior structure. The original book was published in 1948, so you may notice some changes to the buildings when you seek them out.
One of the sets of buildings was on Calle delle Furlane, in Castello. These homes are from the 17th century.