Abstract
Population aging and the rising prevalence of disability are reshaping demographic dynamics worldwide, underscoring the need for inclusive environments that accommodate diverse functional abilities. While legal mandates for accessibility exist, structural and institutional barriers often hinder implementation. Universal Design (UD) provides a transformative framework that shifts the focus from individualized accommodations to systemic inclusion; however, its application in Lithuania, particularly in rural settings, remains underexplored. This study addresses this gap by investigating the integration of UD principles in the Ignalina region, a rural Lithuanian locality experiencing pronounced demographic decline and aging. Using the design thinking model, this research examined how public institutions navigate UD implementation across the phases of empathization, definition, ideation, prototyping, and testing. The findings reveal both promising developments and persistent challenges. Community-engaged initiatives, such as micro-grants, volunteer services, and digital accessibility platforms, have begun to enhance service inclusivity. However, issues such as outdated infrastructure, unclear legislative guidelines, and funding limitations continue to constrain progress. This study concludes that UD can serve not only as a mechanism for promoting accessibility but also as a strategic tool for rural socio-economic resilience, contributing to the discourse on inclusive spatial planning and policy development in aging and diversifying societies.