25 Johnston Terrace, Edinburgh

25 Johnston Terrace is a former barracks built in 1872 by Robert Morham, with some work completed in 1874. The building has a long rectangular plan and is three stories high. It features cast-iron deck-access balconies at the rear of the main block, as well as pavilion-roofed stair towers at the center and corners, with crowstepped intervening towers. The exterior is made of rock-faced squared and snecked sandstone, accented with stugged or polished dressings. There are string courses that separate the floors of the towers, and the windows include transomed and arrowslit designs, along with small rectangular windows under the eaves.

On the north elevation facing Johnston Terrace, there is a projecting center tower with a pavilion roof and splayed re-entrant angles. It has a shoulder-arched entrance with a plaque reading VR 1873 above it, and a bracketed pierced balcony above the entrance. The flanking towers are set transversely and have crowstepped designs. Each wing features two additional crowstepped towers.

The east and west side elevations include bracketed pierced balconies that connect the corner towers, and both sides have crenellated parapets.

At the rear, the south elevation showcases an advanced crowstepped center block with a bracketed balcony. There are cast-iron access balconies supported by cast-iron pillars, and the doors are timber panelled with three-pane glazed fanlights.

The windows are timber sash and case with 12-pane glazing. The building has platformed stacks with circular cans, grey slate roofing, and metal finials with lead flashings on the corner towers.