At 1011 Lansdowne Avenue in Toronto, a public/private/non-profit partnership model of housing and supports turned around both a once notorious apartment building and the lives of many vulnerable persons. This approach is primarily focused on addressing the needs of single persons with chronic mental health issues and low incomes by offering a wide range of supports. This case study looks at the necessary ingredients of the partnership, the key elements that facilitated the collaboration, success factors and available evaluation measures.