Her Majesty's Prison: governor's office, offices, boardroom, security and reception block

Her Majesty's Prison includes the governor's office, offices, boardroom, security, and reception block. It was originally built in 1801 by architect John Wing. The building is constructed of Flemish bond red brick with painted stone dressings and features slate roofs with stone coped pedimental gable ends, along with brick end stacks.

The plan is cruciform, with a rear wing that was incorporated into an extension added in 1848-1849. The 1848-1849 'F' wing was added on the east side, and a 20th-century wing was added on the west side.

The exterior consists of three storeys and has a south front with a 4:3:4 bay arrangement. The central three bays project and feature a rebuilt pedimental gable with a bullseye. There are bands at the first floor and mid-storey levels. The windows have plain stone architraves, sills, and bars; the central three windows are in round-headed arches, with the central doorway featuring a semi-circular fanlight and glazed double doors. The central three windows on the first and second floors are 19th-century twelve-pane sashes. A 20th-century single-storey wing is located at the right angle, with a 20th-century extension on the left (west) end and the 1848-1849 'F' wing on the right (east). The rear features small first and second floor windows with cill bands, while the ground floor rear windows of the east wing have round arches.

The interior has not been inspected.

Bedford Prison was constructed in 1801 according to designs by John Wing. In 1848-1849, it was extended, with the perimeter walls and front entrance rebuilt, and flanking front wings added by Thomas Smith, the County Surveyor for Hertfordshire and Bedfordshire.