The Independent Options Appraisal (IOA) of the Palace of Westminster Restoration and Renewal Programme is an independent assessment of a range of options, with costs and timescales, for a major restoration and renewal of the Palace.
The IOA was published on 18 June 2015 and follows on from a Pre-feasibility Study on the Palace in 2012. A Joint Select Committee of the two Houses was formed in July 2015 to consider the findings of the IOA report and recommend a preferred way forward.
The scope of the IOA
The IOA explored a range of scenarios combining potential improvements (ranging from minimum requirements to substantial improvements) with three delivery options:
- Continuing repairs and replacement of the fabric and systems of the Palace over a significant period of time.
- A defined, rolling programme of more substantial repairs and replacement over a long period, but still working around continued use of the Palace.
- Scheduling works over a more concentrated period with parliamentary activities moved elsewhere to allow unrestricted access for the delivery of works.
The IOA compared five scenarios which combined varying levels of scope with three different approaches to carrying out the work. The report does not contain recommendations on which scenario to choose but was intended to enable Parliament to make an informed decision on a preferred way forward. They ranged from a ‘do minimum’ gradual approach, to making significant improvements in a single phase approach. The key findings were:
Rolling programme - Undertaking the minimum work with Parliament remaining in occupation would take around 32 years. During that time both Chambers would have to close for between two to four years, at different times, but sittings could be relocated to a temporary structure elsewhere in or around the Palace. Users of the Palace would have to tolerate high levels of noise and disruption over a long period and there would be a level or risk to the continuous running of the business of Parliament. This option is the least predictable in terms of duration and cost. Cost estimate for a ‘do minimum’ outcome: approximately £5.7 billion.
Partial move out - The work would be carried out more quickly if first the Commons, then the Lords, were to move to temporary accommodation outside the Palace. Security and nuisance issues would have to be managed at the boundary between the two zones. This approach would take around 11 years. Cost estimate for a ‘do minimum’ outcome: approximately £3.9 billion. Cost estimate for some improvements: approximately £4.4 billion.
Full move out - If both Houses fully vacated the Palace this would take the least time and would avoid disruption to Parliament from construction works. Risks to the continuous running of the business of Parliament would be greatly reduced, assuming that sufficient temporary accommodation can be found for occupants of the Palace. This approach would take around six years. Cost estimate for some improvements: approximately £3.5 billion. Cost estimate for significant improvements: approximately £3.9 billion.
References to capital expenditure ranges in the IOA should not be interpreted as either setting or estimating a budget for the Restoration and Renewal Programme. A budget will not be set until a detailed design brief and means of delivery are agreed. This would be set out in an outline business case, which is unlikely to be drawn up before 2018.
Read the report
The Independent Options Appraisal Final Report has been produced in two different formats: A3 landscape and as an accessible A4 version which allows for the use of assistive technology. Information about the Restoration and Renewal Programme and the IOA Final Report has also been produced in an easy read format.
IOA Final Report
An independently produced, costed
options appraisal of the Scenarios, to
enable Parliament to reach a well-
founded decision in principle on the
means of restoring and renewing the
Palace of WestminsterDownload IOA report (A4)
PDF, 250 pages, 17MB
Download IOA report (A3)
PDF, 129 pages, 13.5MB
IOA chapter 1: Executive summaryDownload chapter 1 (A4)
PDF, 26 Pages, 3.2MB
IOA chapter 2: Glossary
An explanation of key terms in the reportDownload chapter 2 (A4)
PDF, 6 pages, 0.5MB
IOA chapter 3: Introduction and approach
The detailed approach adopted by the IOA
team for the IOA reportDownload chapter 3 (A4)
PDF, 26 pages, 1.3MB
IOA chapter 4: Evaluation and comparison
The evaluation and comparison of each Scenario
against Evaluation CriteriaDownload chapter 4 (A4)
PDF, 52 pages, 7.1MB
IOA chapter 5: Key themes
Further detail on key themes within the IOA including
approaches to delivery, logistics, planning, heritage,
sustainability and accessibilityDownload chapter 5 (A4)
PDF, 56 pages, 2.4MB
IOA chapter 6: Scenario booklets
Key features and further details for each of
the five ScenariosDownload chapter 6 (A4)
PDF, 84 pages, 4.4MB
About Restoration and Renewal and the IOADownload easy read (A4)
PDF, 13 pages, 1.37MB
Two further volumes of detailed supporting information were produced by the IOA team.
Appendix A: Financial Information
Appendix B: Schedule
Appendix C: Delivery approach
Appendix D: Potential scope
Appendix E: TechnicalDownload Volume 2 (A3)
PDF, 187 pages, 21.1MB
Appendix F: Information sources
Appendix G: Compliance documentationDownload Volume 3 (A3)
PDF, 124 pages, 15.3MB