When you construct a granny flat one of the main issues is how to make the best usage of the space available. This rule goes for what happens inside the flat as well as what goes on during the construction of the flat. A challenge which so many have when building granny flats is how to access the utilities and how to ensure that the sewer system is fit for purpose. Adding additional utilities on a site also comes at a cost, and sharing the utilities with the main property can create problems. Small granny flats are a great idea…