This study aimed to provide expert advice to the Flemish utilities regulator (Vlaamse Nutsregulator – VNR) on the future development and regulation of the gas distribution grid. Trinomics and DNV first identified and evaluated possible scenarios and options for the future use, repurposing and decommissioning of the natural gas grid in Flanders from an energy, economic and technical perspective. The project team then assessed the impacts of these scenarios on grid costs, revenues for DSOs, and costs for end-users. Finally, advice and recommendations for VNR and policymakers in Flanders were formulated. The study focused on scenarios up to 2050, starting from the current situation in Flanders, and took the European context into account, and drew insights from relevant developments in other EU countries.