Empty HMP Dartmoor pays Prince William's Duchy £1.5m a year - and there's a twist The Prince of Wales receives millions in taxpayer cash from an empty prison which has now become infested with rats and other vermin.
The cost of the lease has more than doubled since the 1980s, but a Tory source told the Times that the then-government felt it had to sign the lease or risk losing prison spaces which are extremely limited.
There has been further wear on the building since it shut last year, along with bird infestations and bats, insects and birds taking root and taking advantage of the windows that were opened to help with ventilation.
The estate gives Prince William a private income and it is his best taxpayer-funded source of income, according to a joint investigation by The Sunday Times and Channel 4 Dispatches.
A "dilapidations clause” also means the taxpayer must fork out £68 million to repair the building even though it was built with taxpayer cash.