What Is Castle Huntly Prison Like?
Last reviewed: July 2026
Castle Huntly, at Longforgan between Dundee and Perth, is unlike any other prison in Scotland. It is the final stage of the Scottish system for men nearing the end of longer sentences: the “open estate”, where prisoners are tested with increasing freedom before release. Men living there can work in the community, take home leaves and rebuild family ties — the things that most reduce reoffending.
Key facts about HMP Castle Huntly
| Feature | Detail |
|---|---|
| Type | Open prison (Scotland’s only one) for low-supervision adult men |
| Capacity | About 184 |
| Operator | Scottish Prison Service |
| Location | Longforgan, near Dundee, DD2 5HL |
| Regime | Community work placements, home leave, resettlement planning |
| Latest monitoring | HMIPS independent monitoring 2024–25: performed well on all nine standards |
How does an open prison work?
Open conditions are earned, not given. Men come to Castle Huntly after being assessed as low supervision — usually late in a long sentence, often after years in closed prisons like Perth or Shotts. The regime is built around testing readiness for release: unescorted community access, placements with employers and charities, and home leaves that gradually lengthen. Break the trust — fail a drug test, return late, commit an offence — and you go back to closed conditions. The system is very similar in purpose to England’s Category D estate, which we explain in our guide to open prisons.
From first-hand experience — Prison Guide’s founder Daniel Hockey finished his own sentence in open conditions at HMP Ford, having started at HMP Wandsworth, and wrote about the contrast in The Secret Prisoner (2021) — the move to an open prison is the biggest psychological shift of a sentence. The absence of locks is strange at first, and the freedom carries its own pressure: everything is now yours to lose. Most men describe it as the point where life starts again.
What inspectors and monitors say
The last full inspection by HM Inspectorate of Prisons for Scotland, in 2022, found a broadly well-run prison but criticised its underuse at the time, describing Castle Huntly as a potential flagship for the Scottish Prison Service. Since then the population has risen and the picture has improved: the HMIPS independent prison monitoring annual report for 2024–25, based on weekly visits, found the prison performing well against all nine quality standards and highlighted excellent relationships between staff and prisoners. Reports are published by HM Inspectorate of Prisons for Scotland.
Daily life at Castle Huntly
Men live in low-security accommodation in the castle grounds, with far more autonomy than a closed prison: cooking facilities, freedom of movement around the site, and a working day built around placements, education or grounds work. Family contact is central — visits are relaxed compared with closed prisons, and home leave means many men see their families at home regularly before release. Details and the current visits timetable are on the Scottish Prison Service website.
• “Anyone can ask to go to Castle Huntly” — places are earned through risk assessment, usually near the end of a longer sentence.
• “Open prison means the sentence is basically over” — men are still serving their sentence and can be returned to closed conditions immediately for any breach of trust.
• “It’s England’s system” — Castle Huntly is run by the Scottish Prison Service under Scots law; rules differ from England and Wales (for example, the Sentencing Act 2026 release changes apply to England and Wales, not Scotland).
• “There’s no security” — there are no high walls, but strict licence conditions, curfews, drug testing and supervision apply.
Frequently asked questions
Who goes to Castle Huntly?
Adult men assessed as low supervision by the Scottish Prison Service, typically approaching release from longer sentences and needing tested reintegration — work, home leave and community access — before liberation.
Can prisoners at Castle Huntly go home?
Yes — home leave is a core part of the regime, granted progressively after risk assessment. It lets men rebuild family ties and prepare practical things like housing and work before release.
Is Castle Huntly really Scotland’s only open prison?
Yes. Since the open estate was consolidated there, Castle Huntly has been the only open prison in Scotland. England and Wales, by contrast, have a network of Category D prisons — see our open prisons guide.
What happens if someone absconds?
Absconding is a criminal matter and ends open conditions: the man is returned to closed custody and will find it very hard to get back to the open estate. Abscond numbers are low because everyone there has a strong incentive not to.
See also our guides to visiting rules, the first night in prison and about Daniel Hockey.
