The high volume of construction waste, particularly from the end-of-life phase of materials, and the low recycling rates for plastics highlight the industry's urgent need for sustainable practices.

This study employed Design Science Research (DSR) to identify information gaps in material composition, process flows and stakeholder involvement. In the awareness phase the Actor-Network Theory (ANT) was used to map the different actors and to identify the right interview partners for the study. Seven interviews and a workshop were conducted to gather information gaps, translate them into requirements for a digital solution, develop a prototype, and test its effectiveness against the initial requirements.

The result of this thesis is a list of identified information gaps that should be addressed to enable more sustainable end-of-life practices. A framework of a digital system is proposed that contains three core elements: an incentive part, an operational part, and a strategic insights part. The study divides the stakeholders into two groups: the original manufacturer of the product and the recycling collectors. It presents the business case for the two groups that go beyond the financial aspects and sheds light on the value of data collected through recycling practices. The proposed prototype is designed to incentivize waste collectors by transparently displaying cost and CO2 savings and offering a discount mechanism to encourage participation further. It addresses the issue of material traceability and helps organize the transportation of materials. The strategic insights component leverages the collected data, enriching it with other sources to support data-driven business decisions, such as future product development. The study's significance lies in its potential to enhance information collection processes, thereby bridging information gaps and facilitating the shift toward a more sustainable and circular economy within the construction sector.