This session will be focused on recent innovations in the Urban Infill Housing space with Polyhaus' System as a case study: a modular housing innovation designed to address the urgent need for adaptable, high-density urban infill solutions. This presentation explores how Polyhaus enables rapid deployment, with units assembled in days to accelerate housing production. Its volume-maximizing design leverages compact footprints to optimize space in constrained urban environments. Engineered for resilience, Polyhaus structures withstand wildfire, seismic, wind, and environmental stressors while maintaining climate-resilience and sustainability. The system’s modularity supports diverse configurations, enabling prototypical flexibility in response to site-specific and community needs. This panel will examine case studies, design strategies, and policy implications, highlighting how Polyhaus offers a future-ready model for equitable and resilient urban infill development.