Rowan House, 66, 68, 70, 72 Buchanan Street, Glasgow

Rowan House, located at 66, 68, 70, and 72 Buchanan Street in Glasgow, is a commercial building originally constructed around 1830. It stands four storeys tall with six bays and was raised to five storeys with an attic around 1880. The ground floor and the central pair of first-floor bays were altered around 1950. The building features ashlar stonework, with stone facing on the ground floor and painted masonry on the sides.

The Buchanan Street elevation has six bays with architraved windows. The first-floor windows are pedimented, the second-floor windows have cornices, and the third-floor windows have corbelled cills. The fourth floor includes three tripartite windows with pilaster jambs and panelled pilasters flanking each pair of bays, situated above the original main cornice and topped with a lighter moulded cornice at the eaves. A cast-iron parapet flanks a segmental-headed tripartite dormer in the centre bay, which has pedimented dies, and the building features a French pavilion roof at the centre.

On the north side elevation, there are eight bays arranged in a 2-4-2 pattern, painted from the third bay eastward. The four central windows are plain, while the flanking advanced bays are detailed similarly to the Buchanan Street elevation, with some windows being blind. The fifth floor has seven windows at the centre, flanked by two in the advanced end bays.

The building has sash and case windows with margin glazing on the lower sashes, and a similar margin glazing pattern is present on the casement windows of the fifth floor. The roof is slated with both pitched and platform sections.