This paper prepared for Kresge by the Low Income Investment Fund and The Reinvestment Fund and examines development models that intentionally integrate elements from two or more sectors, the capital challenges inherent in such projects, and the unique role that CDFIs and philanthropy play in overcoming those challenges. Unlike fully integrated, outcomes-driven models that require significant resources and formal governance structures, such as those pursued by Purpose Built Communities, this paper focuses on neighborhood-level efforts that go beyond single sector investments that are emerging through partnerships and collaboratives working to deliver community driven solutions.