The synthesis of polymers can be an efficient way to valorise large quantities of BSG or any biomass waste or by-product when it can be converted into interesting building blocks such as monomers or oligomers. In turn, such polymeric materials could be produced in vast amounts, increasing the use of renewable resources and potentially reducing low-value valorisation applications or landfill of BSG. However, the improvement of the impact of such valorisation strategies should, if possible, be assessed thoroughly with appropriate tools such as LCA. At the core of the design of these valorisation strategies should be included as much parameters as possible for optimal reduction of the environmental footprint: impact of drying, transportation, volume availability, synthetic pathway in accordance with green chemistry principles, life of the object, potential recycle, end-of-life treatment, to name but a few. The use of LCB residue as solid filler for composite material production is another way to valorise biomass for material production with potentially a lower environmental impact than polymer production. Indeed, less transformation (extraction, purification, polymerisation) should be required compared to the synthesis of polymers from BSG-derived monomers. However, the percentage of fillers that can be incorporated might be limited, as the materials could suffer from property losses, higher water intake, strong colouration, etc.