I've been doing it since 96,
Wife and I have a key to our safe which has A, B & H firearms in it, both have appropriate licences,
We also have some club pistols stored in there along with my fathers firearms, storage address for all of them is listed as our address.
I also looked after some firearms for a friend of the family when they sold their house and travelled around Aus for 3 years, they simply informed FAR of the change of storage address.
No issues at all, last safe inspection the police even turned up with the list for all 5 licences that listed our place as the safe keeping address.