Where to Build Affordable Housing? Evaluating the Tradeoffs of Location

How does the location of affordable housing affect the distribution of assistance, tenant welfare, and segregation? Using administrative data, we first show that, despite fixed eligibility requirements, developments in higher-opportunity neighborhoods disproportionately house tenants who are higher-income, less likely to have children, and far less likely to be Black or Hispanic. We then build a structural model in which households choose from both market-rate and affordable housing options, where the latter must be rationed. For existing developments, the targeting of assistance is driven mainly by which eligible households apply, with developer screening playing a smaller role. Simulating new developments across neighborhoods, we find that building in higher-opportunity locations raises aggregate tenant welfare and reduces segregation, but primarily benefits more moderate-need and white households at the expense of higher-need and minority households. Policy levers available after construction, such as lowering income limits, have more limited effects than the initial choice of location.