The construction industry is the world’s largest consumer of raw materials (WorldEconomic Forum, 2016). The industry is also known for the large amounts of waste it produces.In the EU, one third of all waste is construction and demolition waste (European Commission,2019), and in the Netherlands, this type of waste accounts for almost one quarter of thetotal waste volume (CBS, 2019). In the Netherlands, 95% of building products used in thisindustry are recycled, usually into a product with a lower value (Rijkswaterstaat & RIVM, 2015).However, if products would be reused in their original function, this could save resources, CO2emissions and financial costs (Arora et al., 2020; Hosseini et al., 2015; Iacovidou & Purnell,2016; Mulder et al., 2007). Value Retention Processes (VRPs) that focus on bringing a usedproduct back into a useable state, are necessary for building product reuse to occur. Whileresearch into VRPs, in general, is emerging, research on the scale of building products islacking. As a result, it is unclear how individual building products could be reused and whichvalue-retaining activities need to occur to enable reuse. Construction companies could benefitfrom a typology system that helps them to identify which VRP can be applied to used buildingproducts so they can make better-informed decisions on how to reuse these products. In thisthesis, existing knowledge on the factors influencing the Reuse Potential of used buildingproducts is combined with the experiences of practitioners in the field and connected topotentially applicable VRPs. Furthermore, the nature of several potentially applicable VRPs andthe difference in costs between new and used products have been determined by interviewingreuse experts. The knowledge on the applicability of VRPs, the nature of the VRPs and thedifference in costs between new and used products were then combined to form a tool thatpractitioners can use to make better-informed decisions on how to reuse building products.