Prison

High Down Prison

Category and function

A–D category: Not yet verified.

Predominant function (2025/26): Category C Trainer/Resettlement

Ministry of Justice performance classification. This describes the stated performance year, not a current A–D category or the categories of every prisoner.

Capacity and population

Monthly snapshot: 24 August 2026

1,044Population
1,133Operational capacity

Operational capacity is the capacity reported for this prison in the same monthly bulletin.

Official monthly spreadsheet · Ministry of Justice publication

Address and location

HMP/YOI High Down
High Down Lane
Sutton
Surrey
SM2 5PJ

Prison site location
View on the prisons map

Location information checked 13 September 2026.

Independent reports

HM Inspectorate of Prisons reports

High Down inspection report 2026

7 September 2026

we found a quarter of men behind their doors. The offer for purposeful activity was better with some popular, employment-focused courses run by Railtrack and XO bikes. Standards of teaching had improved, but attendance at education was still poor and the prison needed to continue…

Read the Criminal Justice Hub summary

High Down inspection report 2023

13 November 2023

The transition of High Down from a reception prison to a category C training and resettlement jail was originally announced as far back as 2015, with the first prisoners moved over the next three years. Further delays meant that the change was only finally completed…

Read the Criminal Justice Hub summary

High Down scrutiny visit 2021

13 May 2021

Progress had been too slow to provide prisoners with purposeful activity 12 months into COVID-19 restrictions. Most prisoners still had only one hour out of their cells each day, sometimes less when time in the open air was cancelled. It had taken five months to…

Read the Criminal Justice Hub summary

Official prison information