This chapter includes the description of European waste catalogue codes related to C&D wastes highlighting those considered as hazardous wastes. It also includes the C&D wastes management plan which addresses the estimation of the several waste streams generated on-site. The selective demolition versus traditional demolition processes are analyzed. The principles and the benefits of design for disassembly are described. Considerations about waste sorting are made. This chapter also covers the recycling of gypsum materials, the inertization of C&D wastes containing asbestos and also the use of thermal treatments to produce concrete recycled aggregates with low cement paste content.