Conceptualized, realized, monitored, recorded and deconstructed over eighteen months, the Raw Earth Sgraffito Pavilion, located in a semi-public Parisian courtyard, is a case study for the sourcing, performance and end-of-life for earth building materials. All the pavilion’s materials were mapped from source to site, then assessed for CO2 impact. The resulting map appears in the decorative sgraffito surface. For its duration, the pavilion was monitored for weathering and, in summer ‘24, for temperature and hygroscopic characteristics. Results demonstrate thermal lag and higher moisture levels around the structure and reveal micro-fluctuations that ratify passive strategies (such as shading, orientation, and night flush) for optimal performance. At end of life, the pavilion was deconstructed, its salvaged blocks reused for training, and fragmented earth plaster and mortar made into a slurry for other earthen building. Plywood used for seating and weather protection was repurposed by an artist for a new project.