HM Prison Portland

HM Prison Portland is a correctional facility on the Isle of Portland in Dorset featuring Victorian-era stone buildings with thick walls and cell blocks situated along the coast. The complex holds both adult prisoners and young offenders, offering educational and vocational training programs for rehabilitation.

The facility was established in 1848 as Britain's first male convict public works prison, where inmates contributed labor to build Portland Harbor's breakwaters. This early work shaped both the region's infrastructure and prison labor practices.

The prison museum displays items and memories collected by former staff members, showing how the institution has changed since Victorian times. Visitors can see personal objects that reflect daily life and work within these walls.

The museum section is open to the public during certain hours, while active prison areas remain off-limits to visitors. Check opening times in advance to plan your visit properly.

Between 1931 and 1935, inmates transformed an abandoned quarry behind St. Peter's Church into a sports stadium that operated until 1975. This shows how prisoners creatively used and improved their surroundings.

Inception: 1848

Official opening: 1848

GPS coordinates: 50.55020,-2.42260

Latest update: December 20, 2025 16:00