Garage, Brantwoode, 4 Munro Drive West, Helensburgh

Brantwoode, a Grade A listed building at 4 Munro Drive West, Helensburgh, is a two-storey, L-plan asymmetrical Arts and Crafts villa designed by William Leiper in 1895. It exemplifies the Shavian Old English architectural style of its period.

The main house is constructed in red sandstone, rake-jointed and snecked rubble with ashlar dressings. The first floor features jettied red tile-hanging, and mock half-timber details appear in the gableheads. Windows are glazed with ashlar mullions at ground floor level and timber mullions at first floor; bargeboarded gables complete the design.

The north entrance elevation is asymmetrical, comprising a single-storey central bay with attic space flanked by two-storey gabled bays. An off-centre right porch and service wing to the outer left provide further articulation. The central section contains a tripartite mullioned and transomed window with a swept roof above and a tripartite tile-hung dormer to the right. The outer right bay features mock half-timber and brick gabling with a projecting porch to its left; narrow windows flank the entrance, displaying cusped lead-pane glazing with pierced quatrefoils above. A segmental-arched doorpiece with chamfered arrises frames a two-leaf boarded door with decorative iron hinges, followed by a half-glazed and panelled vestibule door with lead-pane glazing inset with textured panels and an Art Nouveau style latch handle. Above are a bipartite window to the outer right and a tripartite window, with a small window to the left above the porch. M-shaped gabled bays to the left are interrupted by a projecting service wing with a tall brick stack between them; the rightmost of these bays contains a tripartite mullioned and transomed stair window with stepped lead-pane glazing. The outer left gabled bay has a bipartite first-floor window.

The west side elevation features a canted ground-floor window in 1-2-1 configuration with a small inglenook window to the outer right, and a canted bipartite window above.

The south garden elevation displays a tripartite ground-floor window at centre beneath a relieving arch. Above this is a bracketed fishscale tile-hung balcony with a tripartite French window set within a gabled bay. A taller canted and gabled bay to the right contains a four-light mullioned and transomed window at ground level, flanked by windows on the return to the left and a French window to the right; the first floor features mock half-timber detailing with a bipartite mullioned and transomed window. A semi-octagonal mullioned and transomed window to the right angle is glazed 1-2-2-2-1, with a small bipartite window above. To the left of centre lies a small inglenook window, separated from a tripartite window by an offset buttress, above which sits a gabled dormerhead with bipartite glazing. A sandstone offset wallhead stack with brick banding rises to the left.

The east side elevation contains a small inglenook window to the left of the semi-octagonal window and a bipartite window to the far left, which retains plate glass to the lower sash and multi-pane glazing to the upper sash. A tripartite window occupies the first floor to the outer left.

The service wing employs stugged red sandstone rubble at ground level with red tile-hung gableheads and a gambrel roof to the north, fitted with a bipartite gablehead window and a modern garage abutting to one side. Its west elevation carries a tripartite window, while its east elevation features a gabled bay to the left with an off-centre right bipartite window, a half-glazed shed abutting to the left, and a small gablehead window above, with a further window to the outer right.

Throughout the building, lead-pane casement windows incorporate geometric decorative patterning where noted above. The service wing and a dormer window feature six-pane casement windows. Sash and case windows are bipartite with small-pane upper sashes and plate glass lower sashes. The roof is finished in green tiles with red ridge tiles, and tall corniced brick stacks provide ventilation.

The interior retains a fine decorative scheme with period details intact. A stone chimneypiece in the hall bears the inscription "in the world a home in the home my world". A timber balustered quarter-turn stair serves the upper floors. Principal reception rooms feature wainscoting and timber-beamed ceilings, with fine stone carved chimneypieces; the drawing room retains a timber overmantle, while the living room displays gilded Morris design wallpaper above its chimneypiece. A stone chimneypiece serves the parlour. First-floor bedrooms are fitted with timber chimneypieces. One former bedroom was converted to an Art Deco bathroom in the 1930s, featuring vitriolic tiles and a fine mirror. Original door and light fittings survive throughout, as does original secondary glazing on sliding track to first-floor windows. The service quarters retain original laundry sinks and bath.

The boundary wall comprises red sandstone rubble with red sandstone ashlar octagonal piers; these piers are corbelled and topped with conical caps bearing small ball finials.

A rectangular-plan garage is positioned at the north-east corner of the garden. It is harled with mock half-timber detailing to the north gable, and features timber-mullioned windows with overhanging eaves. Two-leaf boarded doors open to the north; a tripartite window occupies the west elevation with a small window to the outer right, and a bipartite window to the south. The garage is roofed with a gambrel profile.

A fine decorative iron gate divides the kitchen garden from the main garden to the east of the villa.