Granny Flats – What are granny flats and what are they used for is what the author explains in detail in this article. Granny flats are read to install flats which can be put up as and where you want it. Most traditionally these granny flats are installed atop the garage which has an empty space above it. Granny flats are an easy solutions to an increased demand of housing space, as it is made from durable material, is inexpensive and very quick and easy to install. Read all about granny flats in this article.