Gona Barracks occupies a site of almost seven hectares in the inner northern Brisbane suburb of Kelvin Grove. The complex comprises approximately 70 individual buildings, located in two fairly evenly divided areas known as the "upper barracks", accessed via Kelvin Grove Road, and the "lower barracks" entered from Sylvan Road. The upper barracks area features an expansive central parade ground area, around which a group of buildings is arranged. The lower barracks feature two main groups of buildings set within grassed and bituminised areas. The upper barracks area contains two gun park sheds. The first of these is located to the north west of the Kelvin Grove Road entry to the site. The building is a long single-storey timber structure, set on a concrete base, with a gabled roof sheeted in corrugated steel. Original timber doors to the elevation facing the parade ground have been replaced with roller and tilting metal doors. The end rooms contain their original doors and windows. A series of horse-hitching rails are located along the length of the western side of this building. The second gun park shed located on the barracks site mirrors the other gun park shed in construction materials and design. It also contains some early VJ timber linings and early room divisions, although the main gun park space has been subdivided. A ceramic drinking fountain situated on the edge of the parade ground outside this building may be original to its construction. This shed also features a series of horse hitching rails on the western elevation. West of gun park shed 2 is the artificers workshop. It is a small single-storey building on a concrete base with a timber frame clad in ribbed steel sheeting with a gabled roof sheeted in the same material. Internally, the building has two main rooms, one set at a slightly lower level than the other. The building may have been built in two stages. One section appears to be of early construction, and modern cladding has been applied to the outside. This building has been extensively reworked over the years. Adjacent to the artificers workshop. on the western extreme of the site, is a s storeroom. It is a small single-storey building constructed of a timber frame with part-height corrugated iron sheeting roughly applied, and steel mesh to the upper portions with an earth floor. The shallow-pitch gabled roof is sheeted with corrugated iron. A timber door is centrally located. The 1915 Artillery drill hall is positioned at right angles to the number 2 gun park shed, on a north-east – south-west axis, near the western boundary of the site.