Carnegie Library, 13, 15 Castlegate, Jedburgh

The Carnegie Library, located at 13 and 15 Castlegate in Jedburgh, was designed by George Washington Browne and completed in 1898. This large two-storey building sits on a raised basement and features two bays with Jacobethan architectural details. The exterior is constructed of coursed stugged cream ashlar with polished dressings and chamfered arrises.

On the southeast elevation facing Castlegate, the broad right bay is advanced and gabled. The raised basement is blank, with a pend leading to Upper Nags Head Close on the right. The principal floor features a moulded and fleuron-studded round-headed window set on foliate impost bands, complete with a cill course. The upper floor has a tall central window with stone mullions and transoms, topped by a segmental pediment that displays a carved town crest and motto, flanked by bipartite windows and a cill course. To the left, the bay is chamfered to reveal a recessed lower entrance bay, which has a moulded round-headed doorway with a hoodmould leading to an internal porch. This porch contains six steps and bears the inscription "LET THERE BE LIGHT" carved above. A tripartite window is located above the porch, under overhanging eaves with a panelled soffit. The left angle is chamfered to connect with an adjoining building.

The rear elevation also features a large two-storey structure on a raised basement, built of coursed rubble with ashlar margins and square arrises. The left bays include a pend and an entrance to the basement on the right, with a pair of large mullioned and transomed windows on each floor above. The right bays are advanced and feature a bipartite window on the upper floor, along with a projecting rendered and gabled storeroom at ground level, which originally extended along the Close.

The rear includes a round-headed window with six plate glass casements beneath a dentilled transom. A lunette filled with leaded windows has a pair of arched screens at the centre. The left side has a leaded tripartite window, while the upper floor windows are fitted with plate glass casements. The rear also features plate glass windows. The building is topped with ashlar coped skews, grey slates, and coped ashlar stacks, along with panelled cast-iron rainwater heads and downpipes.

Inside, the library features an arcaded leaded clerestory that separates the reading room from the library and stair, with glazed screens supported by panelled pilasters and cornices. The originally top-lit range at the rear of the library has been unified with the reading room at the front.