The project minimises non-renewable primary energy demand through an integrated set of passive design strategies. A high-thermal-inertia envelope, based on thermo-clay masonry walls filled with locally excavated sand, works in combination with full cross-ventilation in all spaces to ensure stable indoor comfort throughout the year. Thermal performance is further enhanced by the enclosure of the inner courtyards with glazing and the incorporation of adjustable solar-shading systems, allowing these spaces to operate as bioclimatic atria—closed during winter to retain heat and fully opened in summer to promote natural ventilation and heat dissipation. The environmental impact of construction is reduced through the careful selection of low-carbon, locally sourced materials rooted in regional building traditions. These include biomass-fired ceramic products, larch timber for structural elements and joinery, recycled cotton insulation for façades, and dried Posidonia oceanica for roof insulation. Landscape design plays an active role in improving the local microclimate and overall habitability. All irrigation demand is met exclusively through rainwater harvested from the roof and stored in an underground tank, eliminating the use of potable water for outdoor uses.