Upset youth

The Homeless Youth Dual Diagnosis Initiative (HYDDI) focuses on developing the knowledge and abilities of youth homelessness workers in the Northern Division (Metropolitan), including Hope Street workers to identify and respond with early intervention to the complex needs, such as the Dual Diagnosis of mental health and substance use, of young people experiencing homelessness.

What does the program offer?

The program fosters helpful, ongoing partnerships between mental health, drug and alcohol and youth homelessness services and offers the following to all homelessness services in the North and West Metropolitan Region:

  • primary consultation offering a confidential specialist mental health and substance use assessment, with the case manager present to promote capacity building
  • secondary consultation advising case managers on brief interventions and strategies, information on referral for specialist treatment, services coordination and clinical problem solving
  • individual and group support for case managers on working with clients with a dual diagnosis
  • short term co-case management of clients with an emerging or current complex needs or dual diagnosis
  • training and education

HYDDI is a Department of Health and Human Services Youth Homelessness initiative implemented through a partnership between Hope Street and the NorthWestern Mental Health (NWMH), the mental health arm of Melbourne Health. A HYDDI Practitioner is employed by NWMH's Substance Use and Mental Illness Treatment Team (SUMITT) and is co-located at Hope Street.

How can young people enter this program?

Young people must be:

  • 16 - 25 years of age and have an emerging and/or impacting mental health and substance use issue (no formal diagnosis required)
  • linked via connections/supports (family, friends, school, training, employment, medical, etc) to the North and North-West Metropolitan region of Melbourne
  • assigned to a primary youth housing case manager
  • not already linked into a government mental health service

Please contact your nearest access point(s) listed on this page to find out more about entering this program.


The support provided by the HYDDI Practitioner can encompass primary or secondary consultations at the request of the young person’s Case Manager or Residential Support worker.  In the 2015-16 period, the Practitioner provided:

  • 72 primary consultation episodes with 23 instances of co-case management
  • 112 episodes of secondary consultation

The capacity building of the HYDDI role takes on many forms, not limited to role modelling and experiential learning. In addition to primary and secondary supports, the HYDDI Practitioner also undertakes organisation and sector development:

  • 80 education information sessions run at a team level and at a cross-sector level to youth homelessness practitioners
  • 23 various meetings and forums were supported by the HYDDI Practitioner

Learn more from our report below.



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