Blawarthill Hospital Administration Block, 129 Holehouse Drive

Blawarthill Hospital Administration Block, built between 1895 and 1897 by R Bryden, is a two-storey and single-storey gabled office lodge with later additions at the rear. The building is constructed from red sandstone that is squared and snecked, featuring ashlar dressings and mock half-timber detailing on the gableheads.

On the northeast elevation, there is an advanced gabled bay at the center, which has a door to the right and a bipartite window to the left, flanked by a cartouche. The first floor features a stone corbelled, slightly jettied mock-timber-framed section with a tripartite window. The flanking bays have canted stone windows at ground level, with ashlar parapets and first-floor windows that break the eaves in gabled dormerheads. To the outer right, there is a slightly recessed and lower bay with a bipartite window at ground level and a dormer-headed window above. The outer left has a single-storey bay with a window.

The northwest elevation features an advanced gabled bay to the left with a window on each floor. The bays to the right show irregular fenestration, including a gabled dormer head above the first-floor window.

On the southwest elevation, there is a later brick extension to the right, dated 1905 by Stewart and Paterson. To the left, there are two irregular windows with dormer-headed windows above, and an advanced gabled bay to the outer left with a window on each floor.

The southeast elevation has a blank gable with a single-storey projection at ground level that consists of a gabled bay to the right with two windows and a single dormer-headed window to the left.

The building features timber sash and case windows with either three-pane or small-pane glazing patterns. The ashlar gablehead stacks have red clay cans, and the roof is covered with grey slates, featuring overhanging eaves with plain barge boards.

The decorative wrought-iron gates, which are two-leaf and pedestrian, lead to Holehouse Drive and are flanked by ashlar gatepiers with offset caps and facetted conical finials. The boundary walls are made of ashlar-coped, harl-pointed rubble.