The recent Building Modernization Law has faced substantial backlash from various stakeholders, including the German Environmental Aid, which plans to challenge the law in court over constitutional concerns related to climate neutrality. Critics argue that the law’s provisions, particularly the removal of a ban on gas and oil heating beyond 2044, contradict Germany’s constitutional obligations to achieve climate goals. Additionally, the law has sparked debates over its implications for tenants and landlords, with warnings of increased costs for renters and calls for clearer planning from municipalities. The law is currently under parliamentary review, and further amendments may be forthcoming.