Old Courthouse, Bolgam Street, Campbeltown

The Old Courthouse on Bolgam Street in Campbeltown likely dates from the mid-18th century and includes earlier building materials. It is a symmetrical, 2-storey, 3-bay structure that faces a small stone-flagged central courtyard, with additional wings to the north, east, and west. The building was remodeled between 1852 and 1853 for use as a courthouse and police offices, which included a jail. The main facade facing Bolgam Street is rendered, featuring raised margins around the openings, projecting window sills, and a moulded eaves course. A central pend is present, and the first-floor windows are round-arched.

The east range of the courtyard has 3 bays and features a stone forestair with a cast iron balustrade leading to a pedimented doorpiece. This doorpiece is topped with a stepped pyramid finial that has a carved serpent. It includes a 2-leaf timber door with an arched-pane fanlight. The west range of the courtyard also has 3 bays, with a central door and dormer windows that break the eaves.

As of 2010, the windows on the Bolgam Street elevation were boarded up and were described as mainly having 12-pane glazing in timber sash and case frames, with a 16-pane glazing pattern in the upper sashes of the round-arched windows. The ground floor windows are secured with iron bars. The roof is covered with grey slates, and there are coped brick chimney stacks, with those on the rear ranges being harled. The rainwater goods are made of cast iron.

The interior was observed in 2010. The first-floor hall, which was formerly the courtroom, features a fireplace with Tuscan columns supporting a corniced shelf. An open timber roof structure includes large timber corbels that support A-frame trusses. The doors and windows are adorned with moulded architraves, and some simple moulded cornicing remains. The roof of the south range has an early single rafter structure with ashlar posts, braced by sarking boards without additional longitudinal supports.