What is a granny flat? Granny Flats are defined as a “Secondary Dwelling or Home Extension”. That means: Granny Flats are secondary to the main property on a single block. The granny flat must be self-contained and it should have a separate entrance, as well as separate bedroom, bathroom, laundry and living area. To build … Read more Granny Flat Checklist: 5 Must-Have Features!