The purpose of this paper is to summarize the process of constructing U.S. Department of Housing and Urban Development (HUD) public housing unit-level addresses. Unit-level addresses were constructed from building entrance addresses and door numbers contained within the Inventory Management System (IMS)/Public and Indian Housing Information Center (PIC) system and from information contained within HUD Form 50058. The project to construct unit-level addresses was undertaken because unit-level addresses are necessary for linking public housing administrative records to the American Housing Survey (AHS), the American Community Survey, and other data sources.