Benjamin Court in Cromer, which closed in June 2023, could be transformed into a neighbourhood mental health centre under proposals from Norfolk and Suffolk NHS Foundation Trust (NSFT).
The site previously offered post-hospital discharge care but was shut without public consultation.
Campaigners have welcomed the renewed interest but remain focused on restoring the original service.
A spokesman for the Benjamin Court campaign group said: “We welcome the interest being shown by NSFT, as it will mean that at last Benjamin Court could be opened up for what is undoubtedly a valuable and much-needed health facility for north Norfolk.
“Having said that, the main focus of our campaign over the last three years has been for Benjamin Court to be reopened for post-hospital discharge care, as that was the service which used to be provided there until it was closed without consultation in 2023.”
The group said it will continue to press for this to happen, if possible alongside the mental health service.
There is an open day being held by the trust on November 11 from 10am to 4pm at Benjamin Court.