Tordarroch, 117 Sinclair Street, 2 West Dhuhill Drive and 2 West Douglas Drive, Helensburgh

Tordarroch is a large, asymmetrical villa built in 1883 by William Leiper in the Shavian Old English style. The house is situated at 117 Sinclair Street, 2 West Dhuhill Drive and 2 West Douglas Drive, Helensburgh. Constructed of snecked red sandstone with ashlar dressings, the villa incorporates mock half-timbering and red tile-hung details.

The east-facing elevation features a gabled bay with an apex stack and a return of a canted oriel. A canted timber porch with basket-arched lights abuts mullioned and transomed windows with leaded glazing. A decorative cornice tops a flat-roof, and a pair of panelled doors is set back from the porch. To the right of the porch is a broad oriel supported on stone corbels, flanked by timber windows, with mock half-timbering to the centre. A steeply pitched piended roof is crowned with a finialled apex, and a piended dormer is situated below. A single-storey, L-plan service wing extends to the outer right, incorporating a segmental-arched doorway with boarded double doors and windows. An advanced wing to the right features a garage door, and returns to the north face with two windows.

The south-facing garden elevation is dominated by a broad, full-height canted window, off-centre to the left. Timber windows with two-over-two glazing are situated at ground and first floor levels, with a tile-hung apron to the first floor windows. A polygonal slate roof shelters a small dormer window below a finialled apex. A bipartite window is positioned to the right at ground level, with a tripartite window to the far right. A bipartite window breaks the eaves to the right at the first floor, and a gabled dormerhead is present. A gabled canted oriel wraps around the angle to the east, featuring a tile-hung apron. A two-storey and attic gabled bay extends to the outer left, showcasing a bipartite window at ground level and breaking the eaves at the first floor, with another bipartite window above the attic. A gabled dormer is on the outer right, and a small dormer with a swept roof is to the left.

The west-facing side elevation returns to the south wing and contains a central advanced chimney wall with an apex stack. A recessed bay to the left has a tripartite window at ground level, and a door is set into a mullion to the right. A canted tile-hung first floor window faces west, with two windows on the return to the left. Another recessed bay to the left contains a bipartite window at ground level and a tripartite window at the first floor. A gabled dormer window is positioned above. A lower two-storey wing is to the left, and a taller gabled bay is to the centre, with a tripartite window at ground level, breaking the eaves at the first floor, and a tile-hung detail to the gablehead. A window is on the right at ground level, and a door is to the left.

The north-facing rear elevation returns to the west wing with a window at ground level to the left and a bipartite window above. A window to the first floor is situated to the outer right. A lower, single-storey wing extends to the left, with a door off-centre to the left, a coal door to the right, and a garage door.

Most windows have plate glass, with some incorporating geometric lead-pane glazing fixed above and stained glass to the stair window. The roof is tiled with green tiles, featuring original rainwater goods and red sandstone ashlar corbelled stacks. The interior of the ground floor flat was not inspected, but the first floor contains original timber chimneypieces, tiles, and bathroom fittings.

Red sandstone rubble boundary walls enclose the property, with octagonal ashlar gatepiers featuring corbelled finialled conical caps and iron gates.