Abstract Despite the European Union’s political efforts to promote healthier and more sustainable food systems, challenges persist, with these systems not yet achieving sustainability and still exacerbating health inequalities. The EU-funded FEAST project aims to catalyse this transition through different actions including by focusing on mapping factors shaping food environments in five European cities, including Brussels. This study focuses on mapping existing policies and initiatives by the city government supporting healthier and more sustainable food systems in Brussels City. Policies were then categorized based on Food-EPI domains, types of policies (i.e. financial incentive) and role of the government (i.e. policy development). Results indicated that while Brussels City has a clear strategy (Good Food Strategy) and objectives (Climate Action Plan) to support the transition, there is a notable emphasis on sustainability over health which could be explained by the absence of a dedicated public health expert in the local government. While there are numerous policies focused on improving the school environment (i.e. healthy and sustainable canteens, banned sodas and snack provision, forbidden advertising inside and nearby of unhealthy foods), there is a lack of corresponding measures for public spaces. Furthermore legislative policies are practically inexistent possibly due to jurisdictional barriers from higher governmental levels. Stakeholder interviews will be conducted in the next phase to delve deeper into these issues and to explore potential facilitators and barriers faced in the development and implementation process of these policies. Overall, this research sheds light on the policy landscape in Brussels City, highlighting both progress, areas for improvement and policy gaps in advancing towards healthier and more sustainable food systems. Key messages • Despite EU political efforts to prioritise more sustainable food systems, relevant barriers are still present at local level in Brussels City, hampering the development and implementation of policies. • In Brussels relevant policies for healthier and more sustainable food systems have been implemented, especially in the school environment, but health seems to be overshadowed by sustainability.