There is a high demand for redeveloping brownfield areas to make European cities grow in a more sustainable manner. As brownfield areas are often located within the urban structure, redeveloping them reduces the need to use green areas for new developments, and creates more compact cities. Remediating contaminated land in former industrial sites or harbour areas will also reduce environmental risks. This policy brief gives an overview of challenges for brownfield redevelopment in the Central Baltic region and is published as part of the Central Baltic INTERREG Baltic Urban Lab project.There is a high demand for redeveloping brownfield areas to make European cities grow in a more sustainable manner. As brownfield areas are often located within the urban structure, redeveloping them reduces the need to use green areas for new developments, and creates more compact cities. Remediating contaminated land in former industrial sites or harbour areas will also reduce environmental risks. This policy brief gives an overview of challenges for brownfield redevelopment in the Central Baltic region and is published as part of the Central Baltic INTERREG Baltic Urban Lab project.