United Kingdom · South East England · Buckinghamshire
HMP Grendon
Data is aggregated from public sources and may be incomplete or out of date.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 Grendon
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 Andy Gryce via Wikimedia Commons (CC BY-SA 2.0)
Photo by Andy Gryce via Wikimedia Commons (CC BY-SA 3.0)
UK Local prison operated by HM Prison & Probation Service. Listed in the GOV.UK Find a prison directory.
Background
HM Prison Grendon is a Category B men's prison, located near the village of Grendon Underwood, in Buckinghamshire, England. The prison is operated by His Majesty's Prison Service, and is jointly managed with HMP Spring Hill which is situated next to Grendon.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
235
Current population
—
Occupancy
—
Year opened
1962
Operational
Facility profile
Operator
HM Prison & Probation Service
Population held
male
Opened
1962
Region
South East England
Security level
High
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 Grendon, HMP Grendon Grendon Underwood Buckinghamshire HP18 0TL See map Help us to improve this page. Give us your feedback in this 2-minute survey .. 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
Contact & address
Conditions Risk Score
Derived signal — not a judgement. How it's calculated
- Overcrowding
- 0/30
- Oversight reports
- 0/30
- Structural flags
- 0/15
- Death signals
- 0/15
- Conditions text
- 0/10
Compared to other facilities in United Kingdom
583 peersHigher risk than 0% 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 Grendon
- 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.