As urban housing markets throughout the United States increasingly exhibit challenges of affordability, federal, state, and local governments have placed renewed emphasis on housing, specifically mixed-income housing, which integrates affordable housing incentives into multifamily development projects. With such incentives, one must wonder what comprises a successful affordable housing policy and how affordable housing can be successfully implemented in a community. This article attempts to answer these questions by detailing the history of affordable housing policies, exploring some of the current affordable housing policies and programs, comparing affordable housing programs from different regions, and discussing some successful affordable housing programs and lessons that can be learned from them.