Warren Hill opened in 1982 to accommodate Cat C Young Offenders in a closed environment. It was part of Hollesley Bay Colony, the other part of the prison being an open Youth Custody Centre/Detention Centre. When the CJ Act of 1991 came into force the population of open Young Offenders dwindled, and in 1992 the open establishment was adapted to accommodate adult category Ds – initially as a minority but the adult population was the majority within the open prison, with Young Offenders occupying one unit.
Warren Hill together with the Carlford Unit (a Section 53 Unit opened in January 2000) went all-juvenile in October of the same year.
In April 2002 though retaining some shared services, HMP & YOI Hollesley Bay became two separate prisons. The Open complex retained the name Hollesley Bay and the Juvenile parts (Warren Hill and the Carlford Unit) became HMP & YOI Warren Hill.
In February 2012 Waveney and Welcome Unit opened within the Warren Hill main site and Carlford Unit was handed back to Hollesley Bay.
Grove Road, Hollesley
Tel: 01394 633 400
Fax: 01394 633 438
Governor: Bev Bevan
Accommodation: Apart from one double room on Carlford all accommodation is single cell with integral sanitation.
Operational capacity: 192 as of 13 February 2012
Reception criteria: Warren Hill – normal reception arrangements accepting Juveniles, DTOs and Section 53/91s