[6] The village of the Grove had been developed directly due to the prison, and a number of homeowners decided to open cafes from the upstairs of their houses for tourists to watch the convicts at work.

[12] Between 1931 and 1935, the Borstal Boys transformed a disused convict quarry into a sports stadium at the back of St. Peter's Church.

[15] During World War II, an air raid on 15 August 1940 saw the Borstal's Rodney House block bombed.

Accommodation at the prison was divided into seven blocks, Benbow, Raleigh, Drake, Nelson, Grenville, Collingwood and Beaufort.

[23] Around 2011, at the Verne, the Jailhouse Cafe was opened to the public, which was created to reduce re-offending and to offer prisoners work experience.

[24] In March 2000, an inspection report by His Majesty's Chief Inspector of Prisons severely criticised conditions at Portland YOI, including foul-smelling toilets and filthy showers.

The report stated that some buildings "were unfit for purpose and lacked basic sanitation", with the continued practice of inmates without access to toilet facilities using buckets which they emptied through their windows.

In late 2013, it was announced by local news that a museum would be opened to cover the history of HM Prison Portland.

The Grove Prison Museum opened in March 2014,[29] through the work of retired officers John Hutton, Steve Ashford and Chris Hunt.

[29] South Dorset MP Richard Drax visited the deputy governor's building to officially open the prison museum and the Lighthouse Learning Centre.

This boundary wall remains a significant visual element within the village, and was built in the 19th century to enclose the convict quarry workings.

[39] The boundary wall, and gate piers, running from St Peter's Vicarage to Alma Terrace, and dating from 1875, was Grade II Listed at the same time as the sentry box.

[40] The early 19th century gate piers at the junction with Grove Road, along with the boundary walls to Ivybank and the Vicarage became Grade II Listed at this same time too.

It was built and once operated by convicts from the prison, and is an important survival and one of the last vestiges of lime production in Portland.