Søren Nielsen is a partner at Vandkunsten Architects, Copenhagen, a firm that was established in 1971 and is regarded as one of the country’s leading socially and environmentally engaged businesses. He received his MArch from the Royal Academy of Fine Arts Copenhagen (KADK) and has a postgraduate master degree in design philosophy. Vandkunsten is devoted to design strategies for sustainability, in particular resource protection, reuse, social, and cultural aspects. The firm undertakes its own research, and considers architectural design at all scales, in particular tectonic strategies, adaptable solutions, weathering of materials and renovation, and the preservation of resources through low-maintenance and »design for disassembly«. Responsible for Vandkunsten’s R&D activities, Nielsen initiated the innovation project Nordic Built Component Reuse, which explores new ways of repurposing waste building components as a strategy for preserving embodied energy.