United Kingdom · South West England · Princetown
HMP Dartmoor
Data is aggregated from public sources and may be incomplete or out of date. Always verify with primary sources before acting on any figure. See data sources.
For families
How to send mail, money, and visit HMP Dartmoor
Step-by-step guidance using the United Kingdom system — addresses, money services, visit booking, what to bring on your first visit.
Gallery
From Wikimedia Commons (CC-BY-SA where not otherwise stated).
Photo by Unknown authorUnknown author via Wikimedia Commons (Public domain)
Photo by Lewis Clarke via Wikimedia Commons (CC BY-SA 2.0)
Photo by Unknown authorUnknown author via Wikimedia Commons (Public domain)
Photo by Neil Theasby via Wikimedia Commons (CC BY-SA 2.0)
Photo by Prosthetic Head via Wikimedia Commons (CC BY-SA 4.0)
Photo by Prosthetic Head via Wikimedia Commons (CC BY-SA 4.0)
Photo by Palickap via Wikimedia Commons (CC BY-SA 3.0)
Photo by Brian Snelson from Hockley, Essex, England via Wikimedia Commons (CC BY 2.0)
UK Local prison operated by HM Prison & Probation Service. Listed in the GOV.UK Find a prison directory.
Background
HM Prison Dartmoor is a Category C men's prison, located in Princetown, high on Dartmoor in the English county of Devon. Its high granite walls dominate this area of the moor. The prison is owned by the Duchy of Cornwall, and is operated by His Majesty's Prison Service. The prison closed temporarily in 2024 for radon mitigation and investigation works. Dartmoor Prison was given Grade II heritage listing in 1987.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
660
Current population
—
Occupancy
—
Year opened
1809
Operational
Facility profile
Operator
HM Prison & Probation Service
Population held
male
Opened
1809
Region
South West England
Security level
Medium
Death-row facility
No
Conditions
HMI Prisons publishes independent inspection reports on roughly a 3-5 year cycle.
Visiting
Visits booked online via the GOV.UK Prison Visits Booking service. Photo ID required. Visit frequency varies by the inmate's IEP level.
Mailing
Format: Prisoner Name & Number, HMP Dartmoor. Use Send Money to a Prisoner (GOV.UK) for funds — cash not accepted.
Practical info
Assisted Prison Visits Unit can help with travel costs for eligible families. Email a Prisoner service is available via the official website.
Known issues
MoJ announced 2024 closure plans following discovery of unsafe radon levels in some wings; full closure under review.
Contact & address
Conditions Risk Score
Derived signal — not a judgement. How it's calculated
- Overcrowding
- 0/30
- Oversight reports
- 0/30
- Structural flags
- 5/15
- Death signals
- 0/15
- Conditions text
- 0/10
What the score is responding to:
- · Substantial documented known-issues record
Compared to other facilities in United Kingdom
583 peersHigher risk than 75% of peer facilities in United Kingdom.
Data completeness
94%How many of our profile fields are populated. We surface this so families and researchers know the limits.
Sources
- GOV.UK — HMP Dartmoor
- GOV.UK Find a prison index
- Find a prison — GOV.UK — UK Ministry of Justice / HMPPS
- HM Inspectorate of Prisons — reports — HMI Prisons (UK)
- GOV.UK Find a prison — collection — UK Ministry of Justice / HMPPS
- Wikidata — Wikimedia Foundation
- Wikipedia — Wikimedia Foundation
- See /data-sources for our overall methodology.