The United States is in a housing crisis. Increasing prices for buyers and renters are forcing Americans out of their homes and making housing unattainable. Offsite construction, the design and delivery of housing using an industrialized and manufactured-style approach, has the potential to deliver more affordable and accessible single and multifamily housing at scale. Although there are many documented benefits to offsite construction, including schedule improvements, quality control, worker safety, and reduction of environmental impact, as an evolving method and practice, offsite construction for housing faces several challenges to increase uptake and adoption. This report, the Offsite Construction for Housing Research Roadmap, presents the key knowledge gaps and research needs that are to be addressed to overcome the barriers and challenges of offsite construction. It is intended as a roadmap for HUD to align its programs and partnerships, but can also serve as an industry-wide roadmap that governments, universities, and offsite companies can work on together to progress offsite construction for housing.