Fact checkPoliticsPublished May 4, 2026
Media reports: “Building a closed detention bed costs about £500,000 according to official prison programme figures, and the same cost standard applies to immigration removal centres.”. Our verdict: Mostly True.

The claim

“Building a closed detention bed costs about £500,000 according to official prison programme figures, and the same cost standard applies to immigration removal centres.”

Media reportsNews reportMay 4, 2026Read the original

Coverage of the cost of building immigration detention places.

Our verdict

Mostly True

National Audit Office figures imply roughly £470,000 to £505,000 per new prison place; we could not confirm that the same standard is used for removal centres.

What we found

The NAO put the prison expansion programme at £9.4bn to £10.1bn for 20,000 places, roughly £500,000 a place. We found no official statement applying that figure to immigration removal centres, which are run by the Home Office.

The evidence

  • Supports the claim

    The NAO estimated the prison expansion portfolio at £9.4bn to £10.1bn for the 20,000-place programme. [1]

What we could not confirm

  • Whether the same cost standard is applied to immigration removal centres.

How we checked

We checked the claim against National Audit Office. We reviewed 1 relevant source.

Sources

  1. [1]National Audit Office · Increasing the capacity of the prison estate to meet demand (summary)

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