The Constitution Unit is an independent and non-partisan research centre based within the Department of Political Science at University College London.

The unit was founded in 1995 by Robert Hazell and specialises in the study of parliament and parliamentary reform; elections and referendums; monarchy, church and state; devolution; constitution-making; freedom of information legislation; courts and the legal system; and the relationship between the UK and EU.

[1] It aims to help policy-makers involved in constitution-making processes by researching constitutional and political developments in and beyond the UK and by assessing the effects of reforms that have taken place.

[2] Unit members have also frequently acted as advisers to government and parliament, and regularly provide evidence to parliamentary committees and appear in the media.

"[4] Historically, the unit has published extensively on issues including Freedom of Information, judicial appointments and devolution.

[7] The Constitution Unit, in partnership with the London-based Institute for Government, played a key role in the writing of the Manual.

Following the appointment of Professor Alan Renwick as deputy director, the unit has increasingly focused on deliberative democracy and constitution-making.

It also has a blog that features regular posts from academics and practitioners covering a wide range of constitutional issues in the UK and overseas.