For up to date contact details for church buildings, temples and missions, refer to the LDS Pacific Area Website
To find any other church buildings in Australia, visit the Australian White Pages online. Go to the search section and use these search criteria.
Name: church of jesus christ
State: choose the state it is in
Search Type: choose "Business" as all the church buildings are listed in this category
If you use this method you'll have a good chance of finding what you're after.
If you have any details to add to this page, send an email to firstname.lastname@example.org