Let's face it! For as long as the majority of our population is the elderly and for as long as the living cost of Australia continues to soar,Granny flats are here to stay. A secondary dwelling bomb ticking-awaiting to explode. Oh yes! You better bet on it! Pretty soon enough,almost all houses in Australia would be attached with ancillary accommodations or majority of the Australian backyards will be transformed into secondary dwellings for rent, for ailing granddads and grandmums or for who knows what.