<p>Since the late 1990s, the UK devolved a substantial range of powers to the legislatures and governments in Scotland, Wales and Northern Ireland, whilst maintaining the constitutional supremacy of the Westminster Parliament. Although devolution promoted a clear separation of powers, the different administrations are interlocked into a system of functional interdependencies and asymmetrical power relations. Without provisions for joint decision-making and legally binding guarantees that the UK Government does not interfere in devolved policy areas, competitive party politics, constitutional rows and the different perspectives towards the UK’s EU membership exacerbated existing intergovernmental tensions and fostered new conflicts. Examining the narratives of the UK’s devolution settlement and the relations between different governments in London, Edinburgh and Cardiff sheds light on deeply-rooted trades of the UK’s political culture and helps us to better understand how devolution has contributed to the transformation of political norms. Guided by the Narrative Policy Framework, the article asks what are the key narratives that (re-)shape relations between the UK and the devolved governments in the United Kingdom (UK)? How have they changed in the light of severe political tensions due to Scotland’s independence movement and the UK’s departure from the EU? What beliefs and strategies inform the narratives about territorial politics? The article identifies the dominant macro-level narratives policy paradigm, institutional setting and cultural norms and analyses how these were contested by political developments, events and alternative perspectives during the last decade.</p>