The historic Palace of Westminster, one of Britain’s most recognisable national landmarks and the centre of its parliamentary democracy, faces an increasing risk of a catastrophic fire or similar disaster unless urgent decisions are made about its long-delayed restoration, according to a new report by a parliamentary committee. The warning has raised fresh concerns about the safety of the historic building, the escalating cost of maintenance and the consequences of repeatedly postponing a comprehensive renovation programme.
The House of Commons Public Accounts Committee (PAC) has warned that the building could experience a disaster comparable to the devastating fire at Notre Dame Cathedral in Paris if politicians continue to delay decisions about the necessary refurbishment. The committee said the risks were no longer theoretical and that the deteriorating condition of the parliamentary estate required immediate attention. Without a clear commitment to restoration, the historic complex could face increasingly serious structural and safety problems.
The Palace of Westminster is a Grade I-listed building and a UNESCO World Heritage Site. It is internationally recognised for its distinctive Gothic architecture, historic chambers and longstanding role in British political life. The complex houses both the House of Commons and the House of Lords, making it one of the most important institutions in the United Kingdom. However, beneath its internationally recognised appearance, the building is struggling with ageing infrastructure, outdated electrical systems, leaking roofs, plumbing failures and deteriorating masonry.
The PAC’s latest findings highlight the growing financial consequences of delaying essential repairs. The committee estimates that maintaining the parliamentary estate currently costs approximately £1.5 million every week. Without significant intervention, the weekly maintenance bill could soon rise to around £2 million. Such expenditure is placing increasing pressure on public resources while failing to address the fundamental problems affecting the historic complex.
The committee also warned that every additional year of inaction could add approximately £420 million to the overall restoration programme. This means that postponing decisions is not necessarily saving public money. Instead, delays are increasing the financial burden while allowing existing maintenance problems to become more complicated and expensive to resolve.
Sir Geoffrey Clifton-Brown, the Conservative MP who chairs the Public Accounts Committee, criticised what he described as a political reluctance to make difficult decisions about the future of the parliamentary estate. He argued that the restoration debate had been affected by repeated disagreements and an unwillingness among politicians to commit to a workable long-term strategy.
He also stressed that the consequences of a major disaster would extend far beyond the financial cost of repairing the building. The destruction of an internationally recognised historic landmark could seriously damage Britain’s cultural reputation and national confidence. Images of flames emerging from the roof of the Palace of Westminster, broadcast across international television networks, would represent an extraordinary national tragedy.
The committee’s comparison with the Notre Dame fire was particularly significant. The 2019 fire at the historic Paris cathedral caused extensive damage to one of Europe’s most important cultural and religious landmarks. Although the circumstances surrounding the two buildings are different, the PAC believes the possibility of a major fire at Westminster deserves serious consideration because of the ageing infrastructure and persistent electrical safety concerns.
Fire prevention has already become a significant part of the parliamentary estate’s maintenance arrangements. Outdated electrical installations have created continuing concerns, requiring round-the-clock fire patrols to monitor potential hazards. These patrols are intended to reduce the likelihood of a serious incident while the wider refurbishment programme remains unresolved.
The condition of the Victorian-era parliamentary complex has also created a growing list of operational difficulties. Plumbing failures regularly disrupt normal activities, while leaking roofs require continuing attention. Parts of the building’s exterior masonry are deteriorating and have been protected by extensive scaffolding. Although ongoing maintenance has helped keep the estate functioning, the committee believes this approach cannot provide a permanent solution.
The wider restoration programme has been under discussion for years, with disagreements over its scale, cost, timetable and the arrangements required to accommodate parliamentarians and staff during construction. The project is particularly complicated because the Palace of Westminster must continue to fulfil its parliamentary functions while extensive work is undertaken.
The estimated overall cost of restoration has reached as much as £40 billion, while the programme could take approximately six decades to complete under one of the proposed approaches. These figures demonstrate the extraordinary technical and logistical challenges associated with renovating a historic building of this size and importance.
Two principal proposals have emerged from four earlier options. The first, known as a full decant, would involve moving most parliamentary operations away from the Palace of Westminster during the main restoration work. Under this arrangement, parliamentary staff would relocate to buildings on the northern side of the estate. The House of Commons would temporarily operate from Richmond House, while the House of Lords would move to the QEII conference centre.
This approach is expected to take up to 24 years and cost approximately £15.6 billion. Although it would require extensive temporary arrangements, supporters of this model could argue that moving parliamentary operations would allow restoration work to proceed more efficiently and reduce some of the complications associated with carrying out major construction work around an active legislature.
The second proposal, known as a staged decant, would involve a more gradual approach. Under this arrangement, the parliamentary chambers would continue operating within the estate for much of the restoration period. The House of Commons could temporarily move into the House of Lords chamber for up to two years while particular sections of the complex undergo refurbishment.
However, this option could extend the programme to between 38 and 61 years and cost approximately £39.2 billion. The extended timetable and substantially higher estimated expenditure have raised questions about whether a gradual approach would ultimately provide better value for taxpayers.
The PAC has also expressed concerns about the cost of preparing temporary parliamentary accommodation. Estimates suggest that refurbishing the QEII conference centre could cost approximately £417 million, while preparing the northern section of the parliamentary estate for temporary use could require around £2 billion.
The committee considers these figures particularly high and has questioned whether more economical alternatives could be developed. It pointed to Canada’s experience of establishing temporary parliamentary facilities while its own parliamentary buildings underwent refurbishment, suggesting that Britain should examine international examples before committing to expensive temporary arrangements.
Another concern raised in the report is that the restoration programme appears to be shaped around the availability of temporary accommodation rather than developing temporary facilities according to the requirements of the restoration timetable. The committee believes this approach could create further delays and increase the overall cost of the project.
Beyond financial considerations, the PAC has criticised the complicated governance arrangements overseeing the restoration programme. Responsibility for the process is divided among several parliamentary bodies and officials, making it difficult to establish clear accountability and maintain momentum.
The committee has recommended that the clerks of both the House of Commons and the House of Lords produce a plan within six months to improve engagement with parliamentarians. It believes MPs and peers need to be more directly involved in discussions about the future of the building so that decisions can be reached with greater transparency and political support.
The report also calls for more reliable cost estimates and a clearer timetable to help parliamentarians make a decision about the main restoration programme in 2030. Establishing realistic financial projections will be essential to understanding the long-term implications of the available options and preventing further uncertainty.
The committee has additionally recommended simplifying the governance structure and establishing a new Restoration and Renewal Select Committee. Such a body would allow MPs to scrutinise the programme more closely and hold senior officials accountable for progress, spending and implementation.
A spokesperson for Parliament welcomed the committee’s scrutiny and acknowledged the seriousness of the challenges facing the historic estate. The spokesperson said that without meaningful action, the Palace of Westminster could face a prolonged period of managed decline. They also emphasised that work was already taking place across the parliamentary complex to protect the safety of employees, parliamentarians and visitors.
The warning has placed renewed pressure on British politicians to reach agreement over a project that has become increasingly difficult to postpone. The Palace of Westminster is not simply an administrative workplace. It represents centuries of parliamentary history and remains a powerful symbol of Britain’s democratic institutions. Its preservation is therefore a matter of national heritage as well as public infrastructure.
The central challenge for parliamentarians will be balancing the enormous financial requirements of restoration with the responsibility to protect the historic building and everyone who uses it. A comprehensive renovation will demand difficult political decisions, substantial public investment and a realistic long-term strategy. However, the committee’s warning suggests that the cost of continuing to delay those decisions could ultimately be far greater.
With maintenance expenditure rising, structural problems continuing and fire risks requiring constant monitoring, the debate over Westminster’s future has become increasingly urgent. Whether MPs choose a full or staged relocation, the next few years could prove decisive in determining whether one of Britain’s most important historic landmarks receives the restoration it needs or continues towards an increasingly expensive and potentially dangerous period of decline.























































































