Historic 18th‑century guardhouse on John Mackintosh Square in Gibraltar.
Gibraltar’s Main Guard is an 18th‑century Georgian guardhouse on John Mackintosh Square, between Parliament House and City Hall. The square’s oldest building, it later served as fire station, bath house and government offices. Since 2001 it has housed the Gibraltar Heritage Trust and contains Gibraltar’s tourist information office.
The Main Guard, also known as Gibraltarin Päävartio, is a historic 18th‑century guardhouse in the British Overseas Territory of Gibraltar. Built for garrison use, it stands on the south end of John Mackintosh Square in central Gibraltar, between Parliament House and Gibraltar City Hall (formerly Connaught House). It is regarded as the oldest building in the square. Early references date from 1748, when a visitor described a “grand guard house” on the Parade, an earlier name for the square. The building appears on plans drawn in 1750 and 1753, labelled “Main Guard Room” and “Main Guard”. Its position close to King’s Bastion meant it almost certainly suffered extensive damage during the Great Siege of Gibraltar (1779–1783). After the siege the structure was repaired, and a second storey was added, visible in 1830s views of Commercial Square, another former name for the site. Over time the Main Guard’s role changed. In the 20th century it served successively as a fire station, public bath house and government offices. French artist Henri Regnault painted three views of the building in the 1860s; long displayed there, they are now in the Gibraltar National Museum. Since 2001 the building has housed the Gibraltar Heritage Trust and hosts Gibraltar’s tourist information office.
