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Explore the reports

The Houses of Parliament Restoration and Renewal Programme is the biggest and most complex renovation of a heritage building ever undertaken in the UK. Reports and studies about different aspects of the project will be published throughout its lifecycle.

This section provides summaries, key findings and downloadable versions of published reports on the refurbishment of the Palace of Westminster.

The Pre-feasibility Study

The House of Lords House Committee and the House of Commons Commission appointed a Study Group to examine all the options for the refurbishment of the Palace. The report was published on 30 October 2012.

Download the Pre-Feasibility-Study-here

The Independent Options Appraisal

The Independent Options Appraisal (IOA) was an independent assessment of a range of options for a major restoration and renewal of the Palace. The IOA was published on 18 June 2015.

Download: Volume 1 main report

Download: Volume 2 appendices

Download: Volume 3 appendices

The Joint Committee on the Palace of Westminster Report

The Joint Committee of the Palace of Westminster was established in July 2015 to consider the Independent Options Appraisal and make recommendations on a preferred way forward for the refurbishment of the Palace of Westminster. The Committee published its recommendations on 8 September 2016.

Download the Joint Committee Report here

The Public Accounts Committee (PAC) report (2017)

The PAC conducted an inquiry into the Restoration and Renewal Programme which reviewed the robustness of options, indicative costings, and project management proposals. Their report was published in March 2017 and supported recommendations that Parliament should leave the Palace while major works to the building are carried out.

Read the PAC report here.

The National Audit Office (NAO) Report

The National Audit Office published its first report into the Programme in April 2020.

Download the NAO Report here

The Public Accounts Committee Report (2020)

Following the publication of the NAO's report on the Programme in April 2020, the PAC took evidence from the chief executives of the Sponsor Body and Delivery Authority in July, and published a short report in October 2020, setting out their conclusions and recommendations for the Programme.

Read the PAC report here.