The overall success of San Francisco’s housing programs and policies results from the interaction of three key factors: (1) dedicated community advocacy and strong coalitions; (2) development of and access to substantial funding sources; and (3) constantly evolving housing programs and policies that address new challenges and recognize opportunities. Combined, these factors have allowed the city to recognize and take advantage of ever-changing market and political forces to maintain and develop strong local communities. This Article describes the development and interaction of these three components of housing program and policy development since the 1970s and how they have created the current dynamic affordable housing and community development system in San Francisco.