Belgian SME case studies evaluate pathways for transforming food and other biowaste into construction products. The article examines circular-economy practices that valorise biowaste in the Belgian construction sector. The discussion centres on Circular economy, Biowaste, Construction sector, and SMEs.

The analysis draws on Multiple case studies, interviews, process analysis, and comparative assessment. The geographical or conceptual scope is Belgium.

The contribution reflects the Lab’s interdisciplinary approach, combining quantitative and qualitative evidence to translate urban-metabolism research into planning, design, governance or policy. Written by Giulia Scialpi and Daniela Perrotti, it appears in or was issued by Environmental Science and Pollution Research (31, 17914–17931).