United Kingdom · South East England · Feltham
Data is aggregated from public sources and may be incomplete or out of date.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
Step-by-step guidance using the United Kingdom system — addresses, money services, visit booking, what to bring on your first visit.

Holds male juveniles (15-17) and young adults (18-21). Two distinct wings — Feltham A (juveniles) and Feltham B (young adults).
Feltham Young Offenders Institution (more commonly known as HM Prison & YOI Feltham) is a prison for adult males over 18 and juveniles between 15 and 18, occupying 0.184 square kilometres (45 acres) south-west of Feltham in the London Borough of Hounslow, in west London, England. It is operated by His Majesty's Prison Service.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
510
Current population
—
Occupancy
—
Year opened
1859
Operational
Figures from official sources · verified 22 May 2026 · methodology
Operator
HM Prison & Probation ServicePopulation held
male
Opened
1859
Region
South East England
Security level
High
Death-row facility
No
HMI Prisons publishes independent inspection reports on roughly a 3-5 year cycle.
Booked online via the GOV.UK Prison Visits Booking system. Photo ID required. Visit frequency depends on the inmate's Incentives & Earned Privileges (IEP) level.
Format: Prisoner Name & Number, HMP/YOI Feltham, Bedfont Road, TW13 4ND. Cash not accepted — use Send Money to a Prisoner (GOV.UK).
Assisted Prison Visits Unit helps low-income families with travel costs. Pact runs many of the on-site visitor centres.
HMI Prisons Urgent Notification (2019) over the use of force and conditions in Feltham A.
Derived signal — not a judgement. How it's calculated
What the score is responding to:
This facility scores 3. The national average across 584 scored United Kingdom facilities is 4 — 1 points below national average.
Same country, matched on type + security level where possible.
Higher risk than 73% of peer facilities in United Kingdom.
How many of our profile fields are populated. We surface this so families and researchers know the limits.
Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.
World Prisons. (2026). HMP/YOI Feltham. Retrieved July 21, 2026, from https://worldprisons.com/prisons/hmp-feltham
"HMP/YOI Feltham." World Prisons. Accessed July 21, 2026. https://worldprisons.com/prisons/hmp-feltham.
@misc{worldprisons-hmp-feltham,
author = {{World Prisons}},
title = {HMP/YOI Feltham},
year = {2026},
url = {https://worldprisons.com/prisons/hmp-feltham},
urldate = {2026-07-21}
}