Portland Prison

Tel:01305 715600– The Grove, Portland, Dorset DT5 1DL

HMP Portland is situated in the Isle of Portland in Dorset and holds both adult males (category C) and young offenders. It only accepts young offenders with sentences of 10 years or less, and adults serving sentences of 8 years or under. The prison was originally constructed in 1848 and then was expanded significantly in 1910 after the purchase of neighbouring land from the Admiralty. If you’d like to visit HMP Portland and need directions, simply refer to the map on this page.

Tel: 01305 715600

Operational capacity: 530

The Grove, Portland, Dorset DT5 1DL

Prison Phone have been saving inmates at HMP Portland money on their calls from the prison to any UK mobile phone since 2013.

We do this by allocating a dedicated and secure local number to your mobile phone, this means when the inmate at Portland prison calls the new local number we have provided they will be charged at just the local landline rate (around 10p per minute) rather than the standard mobile rate (which is around 40p per minute).

This in turn helps to stretch the inmates PINS phone credit further and reduces the amount you need to send in for them to top up!

Send me Portland prison details via FREE SMS

Here’s some facts about Portland Prison

HMP Portland is a category C adult and YOI in The Grove, on the Isle if Portland, Dorset. Opened in 1848, the prison has capacity to hold 580 young adult male inmates.

HMP Portland consists of four house blocks: Benbow, Raleigh, Nelson, and Grenville. Drake is the adult wing. Collingwood is the induction unit. Beaufort is the skills development unit. There is also a care and control unit.

Prisoners taking part in the “back to work” programme were given sensitive paperwork in a plan to make flammable briquettes for the prison furnace. The school, who gave the paperwork to be destroyed, said the paperwork, containing pupils’ information , was not “destroyed in the manner we expected.”

In late 2013, it was announced that a museum would be opened to cover the history of HMP Portland. The Grove Prison Museum opened in March 2014. In May 2015, it was announced that the museum had over 1,000 visitors.

To view the latest HMIP inspection report, click here.

Visiting hours are 13:45 – 16:00 on Tuesdays, Thursdays, Saturdays and Sundays.