[1] It is due to open in 2025 and will be operated on a 10 year contract by Mitie Care & Custody.

[5] The site is opposite HMP Full Sutton and is due to open in 2025.

[4] The new prison will hold approximately 1,500 prisoners and will be the first prison in the UK to run solely on electricity generated through the use of solar panels and heat pumps, allowing the prison to use approximately a quarter of the energy needed to heat historic prisons, such as HMP Wormwood Scrubs.

The prison was named after the local river Millsike Beck, that runs adjacent to the prison.

After a six-week consultation, a panel of Ministry of Justice representatives, as well as local residents to the prison created a shortlist that was presented to then Deputy Prime Minister, Dominic Raab, who agreed upon the name.