Former barracks block, Blackness Castle, Blackness

Former barracks block, Blackness Castle, Blackness

This is a former barracks block built between 1870 and 1874 following the conversion of Blackness Castle to Scotland's main munitions storage depot. The building stands on the southern shore of the Firth of Forth, just south of the castle itself, occupying a narrow defensive headland that overlooks the seaways.

The barracks is a two-storey rectangular building of 16 bays, constructed in tooled, squared and snecked sandstone with margins. It features rectangular doorways with windows above them, and 12-pane timber-framed sash and case windows elsewhere. The roof is slate, with a mix of square and rectangular chimney stacks topped with tall round clay pots. To the rear are four connected outbuildings and a walled yard, while a small wash house stands in front of the east end.

The interior, recorded in 2017, is divided into multiple sections. The barrack rooms themselves occupy the western end, where partially connected square-plan rooms are accessed by external doors in the front elevation. The centre section contains larger rectangular-plan rooms on both ground and first floors. The first-floor room displays visible wooden roof trusses, consistent with its former use as a drill hall. The eastern range at ground floor level contains narrower rooms that were used as workshops. Throughout the building, the sections are generally plain without architectural detailing, though some fireplaces and one iron range survive.

The barracks was built as part of the Cardwell Reforms of the 1870s, which created new recruiting and training centres across Britain. The building is a rare surviving example of a relatively small 19th-century military barracks constructed on the site of a medieval high-status building that remained in military use into the 20th century. It contrasts with the adjacent officers' quarters, which is built in Scots Baronial style, reflecting the typical distinction of the period whereby purpose-built barrack buildings were designed in plain style while officers' quarters received more elaborate architectural treatment.

The exterior appears little altered from its original construction, providing important evidence of military organisation and life in the late 19th and early 20th centuries. The barracks stretches approximately three-quarters of the width of the promontory's neck, helping to restrict access to the rest of the depot from the south. The parade ground lies immediately in front of the building, and to the north stands the iron pier used for loading munitions. The setting and layout remain substantially unchanged since the late 19th century, allowing the relationship and function of the complex to be easily understood.

The custodian's cottage to the northeast and scheduled monument SM90036 are excluded from this listing.