Aircraft hangars, now a storage depot. 1916 with minor mid C20 alterations. Brick, rendered, with segmental arched timber Belfast truss roofs. Side walls buttressed. Windows are metal glazing bar casements. Rectangular plan. 15 bays long by two 100 ft. spans wide. North side has single storey lean-to service building with external side wail stack. 5 C20 casements and door. To right, mid C20 lean-to single bay store with door. South side has 3 doors and 9 blocked segmental headed openings. Above, each side has 13 casements. Each end has multiple metal clad full width sliding doors, flanked by single 2 bay arcades with corbelled segmental arches, into which doors retract. Above, roof ends have each a louvred opening. Felted roof has full length gabled clerestory. Interior has central arcade, 13 bays, with blocked openings and corbelled piers. Laminated wood lattice braced roof trusses with gusseted struts at abutments. 3 braced spine beams. Diagonal boarded covering on longitudinal stringers. This building incorporates a novel form of construction devised to allow a large clear span to accommodate aircraft. (NCC/js)