The 20^th anniversary day featured the usual art, music and gardening activities clients engage in each week, but there was also a cake and guest speakers to recognise the milestone.

In attendance was Libby Wilcox, daughter of Jim and Margot O'Brien, for whom the centre was named.

Mr O'Brien was part of what is now the Mid-Western Consumer Advisory Group, the peak body working to ensure mental health patients receive fair access to services. 

"They made sure they had a voice," Mrs Wilcox said. 

She recalled her mother's battle with bipolar disorder and the difference the centre made.

"When you're admitted to Bloomfield or a psychiatric hospital when you're unwell, it feels like your family is putting you there," she said. 

"[The O'Brien Centre] is somewhere they can go, when they're well enough, for a few hours where they're not in a ward situation."

Mrs Wilcox was happy to see the centre had expanded.

"When it started, there was just the one building and now they've got the art space and the music space," she said.

The centre's next project will be a disability toilet.