MOVING MPs out of Westminster for £4 billion repairs could harm the post-Brexit economy, an MP claimed yesterday.

Tory Shailesh Vara spoke out during a debate on massive repairs and upgrades planned for the UK’s seat of government.

A report last year found work to fix damp, leaks, old wiring, decaying pipework and out-of-date electrics could take up to eight years and cost around £3.9bn.

The estimate is based on moving politicians and their staff to a temporary base for the duration of the project. In contrast, keeping MPs in place and working round them could cause the timeframe to rise to 40 years and drain £5.67billion from the taxpayer.

The work is said to be overdue and failure to act at the Unesco world heritage site, parts of which date back 900 years, is said to cause a substantial risk of a “catastrophic” fire.

Yesterday, former Trade and Industry minister Sir Edward Leigh said elected members must not be moved, citing the example of wartime leader Winston Churchill, who had been determined that “the Nazis would not bomb us out”.

His colleague, Vara, suggested the relocation option would lower the UK’s international standing and hurt efforts to protect the economy after leaving the European Union.

He said: “This is no ordinary building. This is the seat of government.

“We have to take account of the fact that, at a time of Brexit, when we seek to make new friends overseas, when we seek to secure favourable trade agreements, do we really want to convey the image of a temporary building in the courtyard of a government building? We have to take into account the soft sell power of this iconic power that is parliament.

“I put it gently to members here that the selling power of this building far exceeds any figures of costs that have been produced here, because this is an iconic building.”

The debate was called by Labour’s Chris Bryant, who said when the vote is called, MPs mostly back the full decant as the cheapest and most practical option.

Rejecting the need to remain in the complex after Brexit, he said that risked appearing “as if we’re hanging around in an old ancestral mansion like a dour duchess, running with buckets from one dripping ceiling to another”.

Leigh said: “Despite the massive damage to this building, we kept the debating chamber of the House of Commons in the House of Lords throughout the Second World War.

“Although it’s not primarily about sentiment or emotion, this is not an office block. If it was an office block, I agree we should move out. It’s not, it’s the centre of the nation, and the nation should keep its debating chamber in this building.”

Airdrie and Shotts MP Neil Gray, speaking for the SNP, also backed a full decant, saying: “Romance and sentimentality about a building – the idea does not make engineering or financial sense.”

Questioning why the government has not called a debate on the issue in the last five months, he urged them to “get on” with the project to avoid further costs.

However, chartered surveyor Geoffrey Clifton-Brown MP warned the cost “will be well in excess of £3 billion”, adding that the current projections are based on a report which “hasn’t really scoped the work properly”.

Deputy Commons Leader Michael Ellis said the government would hold a vote on the project “in due course” and “as soon as reasonably practicable”.

Bryant said: “Due course is the kind of phrase that weasels use, because it means you don’t really intend to do it in any expeditious way.”