HM Prison Millsike

HMP Millsike

Interactive map of HMP Millsike
Location	Full Sutton, East Riding of Yorkshire, England
Security class	Adult Male/Category C
Capacity	1,500 [1]
Opened	28 March 2025

HM Prison Millsike, situated in the East Riding of Yorkshire and opened in 2025, was built by Kier and commenced with a 10 year operational contract by Mitie Care & Custody. ^[2]

History

Construction began in November 2021 by Kier. ^{[3] [4]} It was part of the government's New Prisons Programme and followed the construction of Five Wells Prison and HMP Fosse Way in Glen Parva, Leicestershire. ^[5] The site is opposite HMP Full Sutton.

The prison holds 1,500 prisoners ^[6] and is the first in the UK to run solely on electricity generated through solar panels and heat pumps, enabling it to use a quarter of the energy of historic prisons such as HMP Wormwood Scrubs. ^[4]

After a six-week consultation on its name, a panel of Ministry of Justice representatives, as well as local residents created a shortlist for then Deputy Prime Minister, Dominic Raab, who agreed upon a name. On 27 February 2023, then Prisons Minister Damian Hinds announced the name as HM Prison Millsike, after the adjacent river, Millsike Beck. ^[4]

References

1. "Innovation in action at UK's first all-electric prison – Infrastructure and Projects Authority". ipa.blog.gov.uk. 12 September 2023. Retrieved 15 November 2023.
2. "New prison HMP Millsike opens with space for 1,500 inmates". 28 March 2025.
3. "Hundreds of jobs to be created from 'all-electric' prison near York". York Press. 7 November 2022. Retrieved 15 November 2023.
4. "Name of new Yorkshire prison revealed". GOV.UK. Retrieved 14 November 2023.
5. Media, Insider (4 August 2022). "£400m contract awarded for construction of new prison". Insider Media Ltd. Retrieved 15 November 2023.
6. "New prison HMP Millsike opens with space for 1,500 inmates". 28 March 2025.

53°59′06″N0°52′26″W / 53.985°N 0.874°W / 53.985; -0.874