FRESH Start Recovery Program's new facility, The Hill, was officially opened last Friday afternoon before a large gathering of politicians and community members.
Fresh Start chief executive Jeff Claughton said the transaction for the Spencers Brook Road property went through in December last year.
"Since then we have had an army of volunteers turning this facility into what you see today," he said.
The three storey old nurses' quarters in the middle of town is still in their possession, and it will continue to be used for an introductory phase of treatment.
"As people go through that phase of getting their head clear, they will then graduate out to The Hill after about 10 weeks," he said.
Across the two facilities there are 135 beds at Fresh Start's disposal which will prove to be beneficial.
"This facility is our response to the scourge of methylamphetamine," he said.
"We haven't acquired this property because we are building an empire – we now have ample accommodation for staff and clients."
The buildings were constructed during the second World War.
Later, the buildings were sold and turned into a holiday camp, and were subsequently sold to a Christian group.
"We were blessed to purchase this property from them," he said.
Fresh Start manager Darrylin Brain said the story for her was about recovery.
"I can look around and see the faces of so many men that have done amazingly well, some past residents that have changed their lives and then others here that are still part of the rehab," she said.
"Saying thank you is really difficult because every one of the men that have been here have put in an amazing amount of work, working tirelessly, both coming out of the hospital, into Northam, getting all that ready and then coming in to The Hill and preparing this place.
"It's been incredible for them."
At the end of proceedings the Australian and Aboriginal flags were raised as a reminder to be good citizens.