Burnham: Devolution strengthens case for written UK constitution

Burnham's vision involves a codified model of devolution that would apply across the UK, ensuring equivalent living standards for all regions. This approach, inspired by Germany's post-war basic law, includes plans for regional mayors to retain a portion of income tax generated in their areas by early 2028, with wealthier regions expected to support less prosperous ones.

He described the latest devolution measures as a significant departure from the traditional British political establishment, indicating a "new level of seriousness" in shifting decision-making power away from the capital. Burnham previously argued in his book "Head North" that the UK's "unwritten and murky constitutional arrangements" have led to power hoarding and contributed to its status as one of the most unequal major countries.

However, experts like Professor Tim Bale of Queen Mary University of London note that introducing a written constitution would be a substantial departure for the UK, typically occurring after major upheaval. He also cautioned that such a move could potentially limit the power of the executive and parliament. Dr. Hannah White, CEO of the Institute for Government, echoed that a fully codified constitution would be a major undertaking, extending beyond devolution to encompass all governing rules.