Loch Lomond Castle Hotel, Loch Lomond

Loch Lomond Castle Hotel is a villa built in 1865 by architects Campbell, Douglas and Stevenson. It is a two-storey and three-storey structure with a rambling plan, currently roofless and in poor condition. The building features stugged squared and snecked sandstone with ashlar margins and dressings, a base course, a moulded eaves course, and crowstepped gables.

The southwest elevation, which serves as the entrance, has an asymmetrical long range. The main block has a broad gable on the right side, with a single-storey canted block to the outer right. The entrance features Ruskinian gothic detailing, including a crowstepped gabled porch that projects to the left, a main round-arched entrance, and a shouldered arch on the returns. There is a crowstepped gable with a blind arrowloop in the gablehead, flanked by windows at the ground level and a dormer above. To the left, there is a similar arrangement of windows in a three-bay lower block, which terminates in a crowstepped gable with a jettied chimney stack. A three-bay wing slightly advances to the outer left, featuring a bipartite window at the ground level to the right and single windows in the left bays, with dormerheads symmetrically placed above.

The north elevation, facing the garden, is a three-storey, five-bay main block with a later incomplete lower block to the outer left and a modern flat-roofed addition extending outwards at ground level. The stugged sandstone here also has ashlar margins and a roll-moulded eaves course stepped for architraves. A tall canted block is advanced to the outer left, with corbelled corners at the second floor and a demolished gable. There are three windows at ground level, with corbelled chamfered corners flanking a bipartite window on the principal floor and a single window at the second floor. To the right, there is a square tower bay with a bipartite window at ground level, a pilastered and corniced window with Jacobethan strapwork pediment at the first floor, and a solid pilastered balcony above. The right side features two symmetrical bays, with the ground floor masked by the modern addition and tall dormer-headed windows at the upper floor. A large corbelled turret is located at the outer right, and there is a single-storey block advanced to the outer right with a canted window at the centre and a plaque raised above.

All windows are missing, but there are remains of plate glass sash and case windows. The building is currently roofless.