The Political and Constitutional reform committee have created three different blueprints for changes to the constitution. Professor Blackburn's three ideas are; A Constitutional Code, A Constitutional Consolidation Act and A Written Constitution.

Firstly, A Constitutional Code would be a document sanctioned by Parliament, but without statutory authority, and which would set out the essential existing elements and principles of the constitution and the workings of government. Due to the fact that the document doesn't have statutory authority therefore it is not statute, and so it is not written down and has not been approved by a legislator.

A Constitutional Consolidation Act: this would be a consolidation of existing laws of a constitutional nature in statute, the common law and parliamentary practice, together with a codification of essential constitutional conventions. As the constitution would be statute this means that it is an act of Parliament and if it were to contradict with a convention or common law, the Consolidation act would dominate. This blueprint would also involve constitutional rules which are based on common law. For example, the formal powers of the crown, royal prerogative, would be statute rather than common law.

The third and final blueprint is a Written Constitution. This would be a document of basic law by which the United Kingdom would be governed, setting out the relationship between the state and its citizens, an amendment procedure and elements of reform. By having a written constitution, everyone would know what are the governing rules and institutions are, therefore decreasing confusion or discrepancies. Many documents including, acts of Parliament and European treaty obligations would be written down in one document, in a clear manner for all to see and abide by. On the other hand it may be to rigid and not adapt to