The CJCM project (Council of Youth of Madrid) represents a radical exercise in tectonic austerity, executed at the threshold of economic impossibility (under €200/m²). Located within a "vetust" 1970s structure, the intervention faced a rigid "double-donut" configuration of load-bearing walls—an interior courtyard ring and an exterior perimeter. Rather than fighting this structural stubbornness, the project performs a total internal clearance, stripping the space to its skeletal essence to reveal the "curved corner" as its primary spatial protagonist. The materiality embraces the "Socioplastics of the Raw." Industrial wood-chip flooring (OSB) and perforated metal sheets serve as the new domestic dermis, replacing traditional partitions with "prototype-shelving" that functions as both storage and spatial boundary. This is an architecture of the "exposed nerve": electrical systems are suspended from the ceiling in a choreographed web, while the original cast-iron radiators are preserved as industrial totems of a bygone era. The white-out treatment of the walls serves as a "chromatic reset," allowing light to negotiate the tension between the flat functional zones and the sinuous, curved edges of the plan.