The conference ICSBM 2025 addresses the design of smart and innovative materials, enhanced in durability and created by the use of side streams. The core purpose of the ICSBM 2025 proceedings is to disseminate recent, detailed and innovative scientific knowledge for the researchers involved in the improvement of the circularity of the building material sector. ICSBM 2025 aims to provide a solid basis for collaborations within international institutions, favoring both the development of scientific knowledge and industrial applications.