Who builds granny flats in Brisbane anyway? It's not as if you can rent them out.
I get a lot of enquiries about granny flats as people after an income from the flats. I advise them that granny flats are not for renting out however, a lot self manage and rent it out anyway.
There are a number of companies around Brisbane that are promoting dual occupancy in Res A area by incorporating a granny flat in the house design. They are promoting these to interstate investors as well so they must have agents that are willing to manage these.
These strategies are fine however, it becomes a problem if something bad happens. This is when the owner can get into a lot of trouble.