Studies have revealed that the proportion of persons displaced owing to housing is growing significantly. This affects developing countries like Nigeria and other similar African countries. Low-income earners (LIEs) are observed to be severely afflicted by this global threat. The LIEs who are said to account for more than 90 percent of Nigeria's population have been alleged to live in slums, blighted areas, and unplanned settlements. This study investigates sustainable approaches to addressing LIEs' housing affordability issues in Nigeria. This study is based on a systematic review of relevant literature, and its findings show that sustainable options for addressing Nigerian LIEs' housing affordability difficulties are examined using technological, institutional, economic, social, and environmental approaches to sustainable housing affordability (SHA). This paper urges the government, stakeholders, policymakers, and property developers in Nigeria and other developing nations to implement sustainable housing policies for low-income housing affordability. It contributes to the frontiers of knowledge by providing helpful information on low-income housing provision, challenges of affordability, sustainability, and management approaches, and at the same time, gives direction to research interest on low-income housing in Nigeria and other developing countries.