The Mental Health Peer Supported Hospital-to-Home Service is a unique project that uses the skills and experience of people with a lived experience of mental illness and currently living well with that mental illness to provide support to others with mental illness. It arose from lengthy consultation with mental health service consumers from across the SAHS region. They identified the first 2 weeks post discharge from hospital as a critical time when they often feel the most isolated and vulnerable to relapse and when they have the least energy to initiate follow-up with GPs for scripts for ongoing medication; hence when illness relapse are most likely to occur. This 3-month pilot project is part of the Department of Health/Mental Health Unit’s Mental Health Care Improvement Initiative (MHCII), recently developed and launched by the Director of Mental Services SA, to improve mental health services in SA.