United Kingdom · Northern Ireland · Lisburn
Data is aggregated from public sources and may be incomplete or out of date.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
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Northern Ireland's only high-security prison. Houses sentenced and remand adult males including separated paramilitary prisoners.
HM Prison Maghaberry is a high security prison near Lisburn, Northern Ireland, which opened in 1986. It was built on the site of RAF Maghaberry, a World War II airfield used as a flying station by the Royal Air Force and a transit airfield for the United States Army Air Forces. At the end of the war, the airfield was run down and was bought back from the Air Ministry in 1957 by Edward Thomas Boyes who then farmed it with his sons until the Northern Ireland Office began work on the prison in 1976. Mourne House, which held female prisoners, young offenders, and remands, was the first part to be opened, in March 1986. This followed the closure of the women's prison at HMP Armagh.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
781
Current population
720
Occupancy
92%
Year opened
1986
Operational
Figures from official sources · verified 22 May 2026 · methodology
Operator
Northern Ireland Prison ServicePopulation held
male
Opened
1986
Region
Northern Ireland
Security level
Maximum
Death-row facility
No
CJINI inspections describe a complex mixed-regime estate. Separated wings (Roe House and Bush House) reflect NI's political history.
Pre-booked via the NIPS visits line; specific arrangements apply to separated regimes.
Format: Prisoner Name & Number, HMP Maghaberry, Old Road, Lisburn BT28 2PT, Northern Ireland.
Family Centre operated by NIACRO.
Repeated CJINI concerns about the use of segregation and conditions in separated regimes.
On 18 December 2022, Natalie McNally, a 32âyearâold woman from Northern Ireland, was stabbed to death in her home in Lurgan, County Armagh.

John Adair (born 27 October 1963), better known as Johnny Adair or Mad Dog Adair, is a Northern Irish loyalist, and the former leader of the "C Company", 2nd Battalion Shankill Road, West Belfast Brigade of the Ulster Freedom Fighters (UFF).
Source: Wikidata + Wikipedia.
Derived signal — not a judgement. How it's calculated
This facility scores 0. The national average across 584 scored United Kingdom facilities is 4 — 4 points below national average.
Same country, matched on type + security level where possible.
Higher risk than 0% 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 Maghaberry. Retrieved July 21, 2026, from https://worldprisons.com/prisons/hmp-maghaberry
"HMP Maghaberry." World Prisons. Accessed July 21, 2026. https://worldprisons.com/prisons/hmp-maghaberry.
@misc{worldprisons-hmp-maghaberry,
author = {{World Prisons}},
title = {HMP Maghaberry},
year = {2026},
url = {https://worldprisons.com/prisons/hmp-maghaberry},
urldate = {2026-07-21}
}