The Brussels Shopping Pavilion urban masterplan finds its form directly from a musical score written for its site, and integrates several sustainable and renewable energy sources, forming a unique urban experience in the heart of Belgium's capital city. Free-flowing concrete shells become greenhouses, shopping pavilions, and shading devices above-ground, while connecting with underground transit and traffic flows below. Within their shell structures, the pavilions integrate solar and rainwater capture, alongside passive and active building systems. Courtyards between buildings serve as rich pockets of urban experience, functioning year-round as terraces, fountains, and eventually as ice sheets.