This policy framing paper is one of three that explores the potential for housing combined with support services to create better outcomes for vulnerable populations. The U.S. population of formerly incarcerated individuals has increased dramatically over the past decade, resulting in sweeping consequences to individuals and families, communities, safety, and public spending. Against the backdrop of these reentry challenges, this paper discusses how housing can be a platform or pathway toward more successful reentry and reintegration for formerly incarcerated persons. The authors then identify research needed to inform policymakers and practitioners in meeting the housing and service needs of this at-risk group. This framing paper is part of a series of field-building research agendas produced under the What Works Collaborative. More information can be found on the What Works Collaborative web page.