Since the 80s, Australia has had even stricter laws than the UK. Guns can only be kept if they are used for pest control, hunting, target shooting, or collecting (though I bet a lot of people say they are collectors yet keep the guns in case of using them for self defence). There are even restrictions on owning antique firearms, in some states a licence is not required though, but the firearm has to be registered.
Another example of the UK Australia difference is the ownership of silencers, these are legal in the UK but only a few government agencies in Australia are allowed to have them.
So yeah, imagine trying to own a gun here, the typical person in suburbia would never be allowed.