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Parliamentary sovereignty is the foundational principle of the UK's unwritten constitution, holding that Parliament has unlimited legislative competence — the supreme power to make, amend, or repeal any law.

Parliament sits at the heart of the UK constitution, enacting legislation, legitimising government action, scrutinising bills, and authorising public expenditure through the Commons and Lords.

Examines how UK law separates Parliament and the courts through statute, convention, and case law — including the Constitutional Reform Act 2005, the sub-judice rule, and the Human Rights Act 1998's declaration of incompatibility.

Examines how English constitutional law separates the executive from the judiciary through judicial independence, the Constitutional Reform Act 2005, and judicial review of prerogative powers.

The UK executive and legislature are formally separated by the House of Commons Disqualification Act 1975, yet significant overlap persists — enabling executive dominance through whipping, delegated legislation, and control of the parliamentary timetable, checked by conventions of ministerial responsibility.

Examines how the separation of powers operates across three constitutional systems — the UK's partial informal separation, the US's entrenched checks and balances, and the Republic of Korea's codified model with a distinct Constitutional Court.

The Rule of Law is a foundational principle of the UK constitution requiring government to act within legal limits, equality before the law, and judicial protection of rights — analysed through Dicey's three limbs and Lord Bingham's modern eight elements.

Examines the Royal Prerogative — residual Crown powers surviving parliamentary encroachment — and constitutional conventions, the binding but non-enforceable norms that govern how those powers are exercised in practice.

Case law is a primary source of the UK's uncodified constitution, establishing residual freedom, parliamentary supremacy, judicial review, and constitutionally significant statutory interpretation through landmark judicial decisions.

The UK constitution draws on multiple sources of law, with Acts of Parliament playing a central role. This note covers eleven key constitutional statutes from Magna Carta 1215 to the Constitutional Reform Act 2005, examining their significance for parliamentary sovereignty, judicial independence, and fundamental rights.

The UK constitution is unwritten, monarchical, unitary, and flexible, resting on three core principles: the Rule of Law, the Separation of Powers, and Parliamentary Sovereignty.