"For only in this way, this new Church of Scientology both serves Perth and becomes Perth.”

“Which is to say this is now the time to bring our help wholeheartedly and indiscriminately.

“And with that, we step out of Dreamtime to realise the final dream before that ribbon falls,” he said.

“Take the most remote major city in the world, sandwiched between largely empty vistas of oceans and deserts; add in wave after wave of hardy and hearty pioneers from England, Scotland, Italy, China, Vietnam, Greece and a score of other ethnic homelands; cook all of that in with the gung-ho, can-do spirit of Down Under; throw in battalions of gold prospectors and diamond miners; sing a couple of bars of Waltzing Matilda, add a kangaroo or two and you have the setting for the planet’s newest Church of Scientology: Perth, the capital and largest city in Western Australia,” promotional literature released by the church said.

The new premises include a “grand, two-storey chapel”, a cafe, and dozens of specially appointed rooms “providing the ideal setting for Scientology auditing”.

In 2015, when the church first touted its plans for a new Perth premises, Scientology spokeswoman Virginia Stewart said the church's Rivervale neighbours would be welcome and the organisation would aim to grow “organically” without any need for it to campaign for new members.

"Typically, our growth comes from people who know someone who knows a member but it's increasingly coming from the internet. People do their research and come to see us when they're ready," she said.

"We don't convert people - it's up to them to find a philosophy or a religion that meets their needs.