The prison is run by HMPS as part of the South Central region. It has a capacity of 1114 and the #1 governor is Laura Sapwell, who has been in charge since March 2020. HMP Bullingdon opened 30 years ago and was the first of a new design of prisons, which had since been copied elsewhere. It was originally built with 4 cellular blocks based around the same T-shaped design of three spurs, each with three landings leading off a central office complex. 2 new units were subsequently added.
Accommodation
- Arncott – general population, including the support and mentoring unit on A3 spur Blackthorn – general population
- Charndon – general population, including the drug recovery unit on C2 spur
- Dorton – general population
- Edgcott – prisoners convicted of sexual offences
- Finmere – the first night centre
- Segregation unit
- Health care inpatient unit