Category C

HMP/YOI Isis

Thamesmead, LONDON, United Kingdom

Isis is a men’s prison and young offender institution (YOI) in Thamesmead, South East London. It is named Isis after the ancient name for the River Thames.

Profile fields are derived from published HMPPS listing data. Narrative sections below summarise published listing details; they are not independent inspections or reports.

Prison information

Contacting and visiting

Address: Western Way, Thamesmead, SE28 0NZ
Phone: (020) 3356 4000
Booking a visit: Request a social visit on GOV.UK
HMP/YOI Isis booking a visit
How prison visits work
Sending money: Send money to someone in prison on GOV.UK
Post and letters: How to address a letter to a UK prison
Can you send pictures in prison letters?
Email a prisoner: Email a Prisoner service: GOV.UK guidance
Phone calls: Letters, video and telephone calls on GOV.UK
Life inside prison: phone calls and family contact

Rules and services change. Check with the prison or the official service before you visit, send money or post anything. Prisons Online is an independent directory, not an official government service.

At a glance

Security / category: Category C
Operator: Public Sector Prison
Capacity: Not listed
Opened: Not listed
Gender (listing): Mens Prison
Cohort: Trainer & Resettlement
Predominant function: Cat C Trainer
Prison sub-group 1: PUBLIC SECTOR PRISONS SOUTH
Type (listing): Trainer & Resettlement · Cat C Trainer

Capacity and opening year are not listed for this establishment. Check the official operator's page for current figures.

What type of prison is HMP/YOI Isis?

HMP/YOI Isis is a Category C training prison for adult men. It also has a resettlement role.

Overview

Isis is a men’s prison and young offender institution (YOI) in Thamesmead, South East London. It is named Isis after the ancient name for the River Thames.

Prison Life

Cohort: Trainer & Resettlement. Predominant function: Cat C Trainer. Gender provision: Mens Prison. Day-to-day regime details should be confirmed with the establishment or official prison finder information.

How to visit HMP/YOI Isis

For visits and bookings, contact the establishment on (020) 3356 4000. Visit arrangements vary by facility, so always confirm directly before booking.

Planning a prison visit to HMP/YOI Isis

Most jurisdictions require you to book visits through an official channel, and slots can fill quickly. Read the establishment’s published visitor rules well ahead of time—ID, dress codes, and what you may bring are not standardised across sites. Expect real differences between prisons: what applies at one location may not apply at another, even within the same country.

For a step-by-step overview, read how prison visits work — then confirm every rule with the operator for this establishment.