HM Prison Belmarsh, Maximum security prison in Thamesmead, London, England.
The prison complex contains residential units with single and multiple occupancy cells, specialized security zones, and an adjacent crown court building.
Established in 1991 on former Royal Arsenal grounds, Belmarsh Prison began operations as a Category A facility for high-security inmates.
The prison maintains educational programs, physical training facilities, and rehabilitation workshops to support inmate development and reintegration into society.
Visitors need advance bookings, valid identification documents, and must comply with security procedures including searches and biometric scanning.
Archaeological excavations in 2009 revealed a 6000-year-old wooden track beneath the prison grounds.
Location: Royal Borough of Greenwich
Inception: 1992
Official opening: 1991
Address: HMP Belmarsh, Western Way, Thamesmead, London, SE28 0EB SE28 0EB
Opening Hours: Monday-Friday 07:00-20:00; Saturday-Sunday 07:00-17:00
Phone: +442083314400
Website: https://gov.uk/guidance/belmarsh-prison
GPS coordinates: 51.49666,0.09327
Latest update: November 22, 2025 12:42
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