@Boronia said:
Would adding non-attached partitioning to a lounge room to provide extra sleeping accommodation contravene any rules?
Would there be an increase in the number of people residing in the premises?
If so and it exceeds two adults per recognised bedroom then definitely, yes.
If the premises are rented then the lease would mention how many people are permitted to live there.
Address this early and decisively otherwise you’ll have way too many people living there with resultant problems.