Reflective young man at one of our refuges

Northern Homeless Youth Dual Diagnosis Initiative (HYDDI) focuses on developing the knowledge and abilities of youth Specialist Homelessness Services workers in the north of Melbourne, including Hope Street workers, to identify and respond with early intervention to the complex needs of young people experiencing homelessness.

What does the program offer?

The initiative fosters ongoing partnerships between mental health, drug and alcohol and youth homelessness services and provides:

  • 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 development

The Northern 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.


During 2017-18, the Northern HYDDI Specialist Practitioner:
  • conducted 164 instances of direct clinical work with young people
  • provided co-case management to 27 young people
  • provided 139 secondary consultations to workers within the sector
  • conducted 222 formal and informal education sessions for workers
This work was conducted alongside workers from the following agencies and sites:
  • Hope Street Youth and Family Services (West Brunswick refuge, Brunswick Town Hall, Melton and Whittlesea Youth Foyer-like programs, BOOST outreach, Youth Reconciliation program)
  • Melbourne City Mission (Stopover, Vicky’s Place, WRAP, and Iramoo youth refuges, Ladder and Precinct transitional programs, Frontyard)
  • Merri Outreach Support Service (Catchment youth refuge)
Throughout the year, a number of focused consultations were provided by the Northern HYDDI Specialist Practitioner, primarily to answer specific questions relating to issues around co-occurring problems from mental health and alcohol and other drug issues. All of these consultations occurred together with the person’s key workers.

Learn more from our report below.



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