An objector of The Lookout has labelled a bid by Western Region Alcohol and Drug (WRAD) to change a condition as "another slap in the face".
Richard Ziegeler said he and other community members had been coming to terms with the decision.
"We thought the conditions VCAT imposed were tolerable and that we could possibly make it work," Mr Ziegeler said.
WRAD has requested VCAT overturn a condition requesting additional staff to what was proposed at the facility.
But Mr Ziegeler said community members were fearful this would jeopardise their safety.
"We feel like they really do not have any regard whatsoever for the neighbours and they're just sticking the boots in," he said.
"That was one of the prime conditions that we actually wanted."
WRAD director Geoff Soma said the condition was being contested because the staff numbers set out in the condition were vastly different to similar sized residential rehabilitation centres operating throughout the state.
"Because of this difference WRAD has decided to make an application under Section 87A of the Planning and Environment Act to amend this condition to reduce the required staff numbers to a level more commensurate with similar facilities," Mr Soma said.
VCAT granted a planning permit for the facility in August.
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