From what I understand you are able to build the granny flat right up to the garage if you want, but the walls will need to be fire rated.
However if you leave a gap (not sure what the minimum gap is) then you should be fine.
However Im not sure how you go about making a double garage into a single, though im sure that wouldnt be a problem.
The best thing to do is to get Wally and Cid from Granny Flats Australia to come by your property and have a look and see what they can do. They'll be able to advise you what is possible and get back to you with an indicative cost.
Then if you decide to proceed, they'll get it all approved for you and get it constructed.
However if you leave a gap (not sure what the minimum gap is) then you should be fine.
However Im not sure how you go about making a double garage into a single, though im sure that wouldnt be a problem.
The best thing to do is to get Wally and Cid from Granny Flats Australia to come by your property and have a look and see what they can do. They'll be able to advise you what is possible and get back to you with an indicative cost.
Then if you decide to proceed, they'll get it all approved for you and get it constructed.