In response to the environmental challenges posed by the construction industry's extensive use of concrete, this research focuses on the reuse of load-bearing concrete elements from end-of-life buildings. Emphasizing the 'Design for Reuse' (DfReu) principle, the study aims to integrate reclaimed concrete into new construction projects. Four chapters delve into construction techniques, concrete reclamation methods, demountable integration, and a practical case study of the former Ministry of Social Affairs and Employment. The findings mark the feasibility of reclaiming structurally sound concrete, with the case study revealing substantial environmental benefits. This research contributes valuable insights to the global call for circularity in construction practices, urging a paradigm shift towards sustainability and adaptability.