Sam Tsemberis, PhD, founded Pathways to Housing in New York City in 1992 based on the belief that housing is a human right. At Pathways, Tsemberis developed the consumer-driven evidence-based Housing First model that provides immediate access to permanent supportive housing to individuals who are homeless and who have mental health and addiction problems.

As an evidence-based practice, Housing First has not only been proven to be successful in ending homelessness, but is also embraced as the most cost-effective solution. Today, the Housing First model is being implemented in hundreds of communities across the United States, Canada and Europe. As the model evolves one thing remains constant: Housing First ends homelessness.Housing First is simple: provide housing first, and then combine that housing with supportive treatment services in mental and physical health, substance abuse, education, and employment.Housing First details:solid, actionable information about the program's philosophy, operations, and administrationthe composition, staffing structures, and day-to-day operations of the clinical and support servicespractices in client assessment and engagementproperty management operationsthe best protocols for assisting clients with the search for housing, relationships with landlords, and the overall "settling in" processthe research evidence for the effectiveness of the Pathways modelThe Pathways model has been remarkably successful in ending chronic homelessness. Since its founding, housing retention rates have remained at 85 ? 90 percent even among individuals who have not succeeded in other programs. Not only is Housing First effective at keeping people housed and working toward recovery, it has also proven to be incredibly cost-effective.