Re: Attention Melbourne drummers!
There's numerous rehearsal studios around. Some of them have a lockable facility where you can leave your drums there but you still have to pack them up and leave them in a dedicated storage room as opposed to leaving them out in the reharsal room.
I'm yet to encounter rehearsal spaces like in America where several bands hire a room and all leave their gear there set up and ready for next time. All of the rooms I've ever used are hired by the hour and your gear has to be packed up each time and either taken with you....or left in a storage room if they have one available.
I'm not saying this type of rehearsal space doesn't exist here....but I've certainly never seen one.