The growing number of decommissioned wind turbine blades (WTBs)   presents an urgent challenge, as their geometry and composite structure makes   recycling difficult. This thesis investigates how WTBs can be repurposed in   scale as structural elements in the built environment, creating circular   construction products with very low embodied carbon. A mixed-methods approach   was adopted, combining literature review, semi-structured interviews,   comparative case study analysis, compression testing of WTB leading edge   segments, and design development. The study identified systemic barriers to   scalable repurposing, including regulatory waste classification, fragmented   supply chains, limited technical information, and liability concerns. It also   showed that near-standardised segmentation is the most viable repurposing   strategy in architecture and that leading edge segments have sufficient   compressive capacity for use as load-bearing mullions. The outcome is a   ventilated façade system, showing sufficient structural performance and   potential embodied carbon reductions of 65–96% compared with conventional   façade systems.