25 Danube Street, Edinburgh

27 Danube Street in Edinburgh is a prominent four-storey and basement tenement building designed by John Webster, completed between 1883 and 1884. This irregular four-bay corner structure features a full-height canted bay on the north elevation facing St Bernard's Crescent. The exterior is constructed of sandstone ashlar, with a channelled ground floor. The entrance has platts that oversail the basement area recess. The building includes a banded base course, a band course at the first floor, a banded cill course at the second floor, and a corniced eaves course. The inset doorways are fitted with boarded timber doors and rectangular fanlights.

On the north elevation, there are roughly four bays with bi-partite windows on the outer left, featuring broad stone mullions. The outer right has a full-height three-light canted bay, with a flanking pier that includes a blind panel between the second and third floors. The west elevation on Danube Street is also roughly four bays and slightly angled, with a pier on the outer left that has a carved panel at the third floor displaying the initials 'JW'. The outer right features bi-partite windows with broad stone mullions.

The southeast rear elevation is made of coursed rubble with tooled ashlar rybats, lintels, and cills, and has roughly regular fenestration. The windows are made of plate glass in timber sash and case style. The roof is double-pitched and covered with grey slates, featuring corniced ashlar wallhead stacks with later corniced and harled sections above, as well as some clay cans. The basement area recess to the street is edged with cast-iron railings that incorporate decorative cast-iron lamp standards with large bowl shades.

Inside, the building has a classical decorative scheme, characterized by well-detailed cornicing in the principal rooms and hallway. Some rooms feature marble fireplaces and working window shutters. The building has been later converted into flats, which includes some subdivisions.