Registration and fire safety compliance go hand-in-hand. There is an existing regime for short-term accommodation.
Places such as motels, hotels, backpackers hostels and boarding houses are all required to be registered with the local Council and provide annual fire safety certificates. Councils actively prosecute for non-compliance, especially the fire safety certificates which attract heavy fines for failure to lodge on time.
There is no reason why this existing regulatory regime is not extended to short-term holiday lettings.