Ten years since the adoption of the UN Guiding Principles on Business and Human Rights, we have witnessed an increasing trend in Europe toward the adoption of mandatory human rights and environmental due diligence. Focusing on due diligence legislation from France, Germany, Norway, and the EU, this article examines the extent to which these laws are laying the foundations for the articulation of an integrated, comprehensive, and robust framework that effectively fosters corporate accountability through preventing, addressing, and remedying corporate‐related human rights and environmental harms. In this examination, we draw on international human rights and environmental standards and Third World Approaches to International Law, to identify the lessons learned from current approaches and that ought to be considered in future frameworks.