Former North Guard House and Attached Wall to North West, Fenham Barracks

The former North Guard House and attached wall to the north-west of Fenham Barracks is a disused barrack guard house and office, which was later used as a restaurant from 1970 to 1990. It was built between 1804 and 1806 by James Wyatt, who was the Surveyor General to the Ordnance Board. The building is constructed of brown sandstone ashlar and features ashlar gable stacks, with a rear brick block and a slate hipped and gabled roof. It has a single-depth plan with offices located to the left.

The exterior is single storey, with a windowless street front and a nine-window rear office elevation. The guard house gable features a coped pediment with raised corner blocks, a central raised round-headed niche in a blind recess beneath an overhanging blind oriel supported by moulded stone brackets, which rises to the top of the pediment. This niche contains three rifle slots beneath a blind lunette. Four courses from the ground, the quoins are replaced by wide cast-iron blocks. To the left, there is a coped wall with a flat-headed opening and a rusticated pier that leads to the former barracks entrance. The brick block has flat-headed openings that were boarded at the time of the survey in 1994.

The attached former barracks wall, which has flat coping, forms the front wall to the office and extends approximately 100 meters to the north-west. Historically, the Ordnance Board was responsible for artillery barracks during the Napoleonic War. This guard house is one of a pair of striking and unusual structures associated with Fenham Artillery Barracks, connected by a late 20th-century glazed archway to the gateway, which is not of special interest. It is part of a group that includes the former sergeants' messes.