@JimmyT said:
Check the original strata plan and work from there. Either way, the Owners Corp could be better off buying or contributing to a new bathroom than trying to repair the old one to a reasonable standard.
How were fixtures and fitting denoted on the older style plans as common property because I must admit I’d be very unhappy if I had to contribute for a new fitted bathroom for an owner who asked for the strata to replace it. No way would I accept the owners quote I’d get the cheapest quote possible and give the owner a take it or leave it option.