Sandra,
Good luck with contacting anyone from Thuringowa as well! The building Surveyors don't answer calls, they just go through the switch and "get back to you!"
Under the Building Code provisions, you can get a relaxation to build a carport against the front and side boundaries, UNLESS it's prohibited by a local by-law.
It has to be a carport with no more than 25% (or thereabouts) of the sides enclosed. (you can't sneak back later and enclose it)
Try phoning Council and asking to speak with a building surveyor. It may take a few calls, now that I think about it, they must have a local guy, go for him rather than head office... and it's a lot cheaper than forking out for a copy of the Building Code!
All the best,
P