Patrick Ward, who said he represented service users, said the hub reduced pressure on NHS mental health services.
“These changes will not reduce costs,” he said. “On the contrary, they are likely to increase demand on NHS crisis services and adult social care.”
Ward told a council meeting on 26 March the proposed changes would also lead to a “sudden and dangerous” loss of support.
“For many, the hub is a vital safety net,” he said.
“Removing or significantly reducing it risks serious deterioration in both our mental and physical health.”