Evaluating the Effectiveness of State and Local Policies Adopted Since 2010 in Supporting Tiny Home Communities as Permanent Housing Solutions in the Pacific States

Since 2010, tiny house villages (THVs) have grown rapidly across the Pacific states in response to two interconnected crises: record homelessness and deepening housing unaffordability. This literature review observes how existing research evaluates the effectiveness of state- and local-level policy in supporting THVs as permanent housing solutions in California, Oregon, and Washington, rather than as a temporary measure. It argues that permanence rests on three factors typically viewed as individual entities by the existing literature: the policy environment surrounding zoning, land tenure, and funding streams; the structural and mechanical engineering that determines whether a unit can physically last; and the architectural design choices that determine whether a unit functions as an actual home for its occupants. In reviewing sources on affordability, homelessness policy, engineering, architectural design, and measurable outcomes, this paper finds that Washington, Oregon, and California have pursued meaningful yet different legislative strategies. Foundation-based units face inconsistent regulatory and engineering standards, and the stigma tiny homes and THVs face can be reversed through thoughtful design choices and community involvement. It also finds that architectural quality, not just initial design intent, is heavily dependent on stable funding during construction, implementation, and operation. Evidence is strongest for permanence and zoning outcomes and weakest for health and accessibility outcomes, reflecting a research base that remains dominated by single-site case studies. Ultimately, successful villages share a specific combination of secure land tenure, resident self-governance, and code-compliant construction, suggesting that durable policy solutions require a coordinated, simultaneous approach across engineering, architecture, and policy reform rather than treating any single factor as sufficient on its own.