The prison opened as a county gaol in 1847 and has served as a woman’s prison a borstal and an adult male prison before becoming a long-term male offenders aged 17 to 21 serving sentences up to life. In 1989, Aylesbury was designated as a long-term young offender institution. It holds the longest sentenced young adult males in the English prison system.
- A wing 68 general population (closed for refurb)
- B wing 68 general population
- C wing 66 Induction (closed for refurb)
- D wing 61 general population and induction
- E wing 81 general population (closed for refurb)
- F wing 52 poor copers and sex offender treatment programme
- G wing 48, general population