Calle Capuzzi is a few steps off the fondamenta Bragadin on rio San Vio in Dorsoduro one of the most popular residential areas of Venice.
If you walk down Rio San Vio away from the Grand Canal you see the American hotel on your left (yellow building). A further thirty metres on from the hotel you will find Calle Capuzzi. The street sign on the corner building is rather worn away but just legible.
The apartment is on the right on the ground floor just a few steps down the 'calle'.