The prison lies at the southern end of the ancient
park of the
same name. The area is first mentioned in 1189 as Wormhold Scrubs (). The name was later corrupted to "wormwood", referring to the herb
Artemisia absinthium, traditionally used as a herb for the treatment of parasitic worms.
19th century The initial steps in the winter of 1874 involved the construction of a small prison made of
corrugated iron and a temporary shed to serve as a barracks for the warders. Nine specially picked prisoners, all within a year of release, completed the buildings, after which 50 more prisoners were brought to erect a second temporary prison wing. Building then began on the permanent prison, with bricks being manufactured on site. By the summer of 1875, enough bricks had been prepared to build the prison's first block and its ground floor was finished as winter began. Construction was completed in 1891. The designer was Sir
Edmund Frederick Du Cane, who gave his name to the prison's road.
The First World War The prison housed a number of
conscientious objectors in the
First World War, one of whom, the
Quaker journalist
Hubert W. Peet, wrote about the conditions there in ''
112 Days' Hard Labour'' (1917).
1920 Hunger Strike In April 1920
Irish Republican prisoners demanded political status, when denied they began a hunger strike which led to their eventual release. During the strike large crowds supporting the Irish hunger strikers gathered outside of the prison and were attacked by local residents with more than 70 injuries reported.
The Second World War During the
Second World War, the prison was taken over by the
War Department and the prisoners were evacuated to other prisons. The
Security Service (MI5) was based at Wormwood Scrubs from 1939 to 1940.
Modern era On 22 October 1966
KGB double-agent
George Blake escaped from Wormwood Scrubs and fled to the
Soviet Union. In 1979,
IRA prisoners staged a rooftop protest over visiting rights. Sixty inmates and several prison officers were injured. In 1982, an inquiry blamed much of the difficulties on failings in prison management. The governor, John McCarthy, had quit before the rioting. In a letter to
The Times, he had described Wormwood Scrubs as a "penal dustbin". In the 1990s, a police investigation into allegations of staff brutality resulted in the suspension of 27 prison officers and the conviction of six for assault, though three later won appeals against conviction. The Prison Service paid out more than three million pounds in out-of-court settlements with ex-prisoners who had alleged brutality. The
chief inspector of prisons delivered a damning report on the conditions, in which the prison was told to improve or close. In March 2004, a further report from the chief inspector stated that Wormwood Scrubs had greatly improved after making fundamental changes. Three quarters of inmates at the prison had said that staff treated them with respect, which was better than the national average. However, the report also stated that inmates spent too much time in their cells, and that only 36 per cent of eligible inmates were involved in education or work. In November 2008, another report from the chief inspector stated that conditions at Wormwood Scrubs had deteriorated since the last inspection. Heightened
prison gang activity had been detected, and 20 per cent of prisoners had failed drugs tests. The prison cell blocks are Grade II
listed, with the gatehouse given the higher Grade II* rating. Major structural changes to the prison's management took place in 2013. In 2014, another report by the Inspectorate of Prisons was critical of the prison, describing it as "filthy". The inspectors also stated that there had been a failure to put into place recommendations by the prisons and probation ombudsman to deal with suicide and self-harm. The chief executive of the Howard League for Penal Reform, a charitable body, said "I have never seen a public service deteriorate so rapidly and so profoundly." In 2017, the prison was reportedly overcrowded and some areas were strewn with litter and infested with rats and cockroaches. Some were locked in their cells for 23 hours a day. The prison was reportedly dangerous for staff and inmates, and officers were concerned for their safety. There were 40 to 50 violent incidents a month.
Chief Inspector Peter Clarke described "an extremely concerning picture" including, "intractable failings" continuing since earlier inspections from 2014. In 2018, a prisoner was stabbed to death and three other prisoners were charged with his
murder. On 30 August 2018 prisoner Winston Augustine committed suicide in the segregation unit after spending two days locked in a showerless cell with no food and without the
tramadol prescribed for
kidney stones that caused him pain. He was suffering from
ketoacidosis due to starvation. A 2021 inquest subsequently identified the prison's failure to provide food and medication as contributing factors to the death; the facility's head of safer custody told the inquest she was "horrified" by the "wrongdoing". In 2019, HM Inspectorate of Prisons found that although improvements had been made to make the prison safer, "the work was often not sufficiently embedded to have yet made enough difference to outcomes". Another inspection, in 2021, reported that improvements had been maintained and there were reductions in the levels of violence, though this was partly because many prisoners were locked in their cells for most of the day. At the time of the inspection there were 1,079 prisoners. In 2024, a prisoner named
Graham Gomm absconded after he had been taken to Hammersmith Hospital to be treated following him feeling unwell the day before. In January 2026, 86 protesters supporting
Palestine Action, a group proscribed as a
terrorist organisation by the British government, were arrested at Wormwood Scrubs Prison after attempting to enter restricted areas of the facility. The
Metropolitan Police stated that the group obstructed prison staff, threatened officers, and refused to leave when instructed. The incident attracted media attention and a response from a
Ministry of Justice spokesperson. ==The prison today==