Worm tubs at Dallas Dhu Distillery

Dallas Dhu Distillery is a remarkably complete whisky distillery complex built in 1898–1901 to designs by the architect Charles Chree Doig (1855–1918). It stands on the southern edge of Forres, Moray, on lower ground close to the River Dullan, and is surrounded by farmland with a forest to the west. The complex is listed at Category A, reflecting its exceptional architectural and historic importance as one of the most complete surviving examples of a traditional late 19th-century Speyside distillery.

Origins and Historical Background

The distillery was originally called Dallasmore and was funded by the entrepreneur and distillery owner Alexander Edward. It was one of two distilleries built on his Sanquhar estate. The sites were chosen primarily for their proximity to the Inverness–Perth junction railway rather than a reliable water supply. Water was drawn from the Altyre Burn, roughly a quarter of a mile to the south, with additional cooling water from the Blair Burn. The site was also close to the good barley-growing land of the Laich of Moray.

The distillery was built in a hollow, which was advantageous because it allowed water to arrive under pressure. However, the ground was boggy and required stabilisation. The walls of the malt barn began to sink after construction and had to be strengthened by ties, which remain visible on the exterior of the building today.

Before production began, the distillery was sold in 1899 to Wright and Greig Ltd, a Glasgow blending company, who bought it to secure a supply of malt whisky for their popular blend "Roderick Dhu", named after a character in Sir Walter Scott's novel The Lady of the Lake. Production began on 29 May 1899 and the first barrel was filled on 3 June that year. The warehouses, also designed by Doig, were added in 1901.

The distillery changed hands several times and temporarily ceased activity during the First and Second World Wars and during the economic depression of the early 1930s. Benmore Distilleries Ltd, who owned the site between 1921 and 1928, invested heavily, introducing electric light, conveyor belts and hoists, and building a railway siding off the adjacent Highland Railway Company line. A new bonded warehouse was also built around 1925, likely the two-storey warehouse to the east. Scottish Malt Distillers, a subsidiary of the Distillers' Company Ltd, took ownership in 1930. From 1936 until closure, equipment was continually repaired or upgraded: new wash-backs and worm tubs were installed in 1937, electric-powered pumps and conveyors replaced the steam engines and waterwheels in 1950, and two new wash-backs, a new mash tun and a boiler were added in 1964 to increase capacity. The stills were replaced in 1968–69.

In 1939 a fire broke out in the still house. Newspaper reports describe a four-hour blaze causing between £7,000 and £10,000 worth of damage to plant and buildings. The fire was contained to the still house and did not spread to the mash house or spirit store. Much of the equipment was destroyed but the extent of damage to the built fabric is not fully known. It is likely that the roof was replaced, though it retains the appearance shown in Doig's original drawings, including ridge windows and a row of lights in the west pitch. Some openings in the north wall of the still house have been altered: single window openings at ground and first floor to the left of the arched opening have been blocked, and a tall, flat-arched opening has been added.

In 1963 the adjacent railway line closed and an elevator was installed in the malt barn to receive loose bulk barley delivered by lorry. Dallas Dhu was never rebuilt or significantly expanded in the 20th century and eventually could not compete economically with Scottish Malt Distillers' other sites. The malt barn became redundant when a larger maltings was opened at Burghead, and the distillery also suffered from an unreliable water supply. The last barrel of whisky was filled on 16 March 1983. On its closure in 1987 the distillery was transferred to Scottish Ministers. It was sold to a private owner in 1997 but remained under the guardianship of Scottish Ministers, and it currently operates as a visitor attraction.

Since closure, the buildings have been repaired and maintained but not significantly changed. The external stair to the barley loft floor has been rebuilt for safer visitor access and the chimney has been reduced in height by 7 metres. A photograph from 1974 shows the chimney originally had three polychrome brick diamond motifs; it now retains one. The roof of the tun room has been replaced with corrugated sheeting supported on braced metal rafters; the previous roof structure is shown in a photograph dated 1980, and a drawing held by Moray Archives indicates it was reroofed in that year.

Overall Layout

The complex comprises three main elements. To the east is a single- and two-storey E-plan malting and distilling factory containing the malt barn, kiln, mash house, tun room, still house, filling store and offices. To the west is a single- and two-storey range of bonded warehouses. Further to the west are two pairs of single-storey-and-attic former distillery workers' houses. Between the malting and distilling factory and the warehouses stands a single-storey wooden storage shed with a corrugated metal roof.

Architecture and Materials

Most of the distillery buildings are constructed in harled pointed rubble with tooled ashlar dressings, and most of the exterior walls are painted. The roofs are pitched and slated with straight stone skews. The kiln has a distinctive ogee-shaped slated roof topped by a pagoda-louvered apex vent — the famous Doig Ventilator, invented by Charles Doig in 1889 at Dailuaine Distillery Maltings to improve the efficiency of kiln chimneys. This innovation, shaped in the golden ratio, became the most characteristic single feature of Scottish distilleries and is a highly practical yet visually distinctive element. Adjoining the north of the still house is a tall, tapered, square-plan chimney built of red brick with contrasting yellow brick quoins.

The south elevation of the malt barn is symmetrical and twelve bays long. The attic windows are smaller and square. In the north gable of the malt barn there is a double-door opening above ground level and one at attic floor level.

The E-plan layout of the malting and distilling factory means the whisky production process proceeds logically and efficiently from south to north through a sequence of rectangular-plan elements and a square kiln — a rational, labour-saving arrangement characteristic of Doig's distillery designs.

The range of five bonded warehouses has continuous gable ends to the east and west walls. The warehouses are mainly single storey, and each gable has three openings, except the east block, which is two storeys and has six openings. Running along most of the length of the north side of the warehouses is a pair of iron barrel rails. There are further short sections of rails leading to an opening in the west elevation of the warehouse, and in front of this is a barrel hoist.

Interior

The interior, as seen in 2019, retains many of its traditional whisky distilling fixtures and fittings. The barley loft — the attic floor of the malt barn — contains two large metal tanks known as steeps. Part of the malting floor at ground level is in use as a shop and offices, with some later and reversible subdivision. The ground floor of the malt kiln retains the kiln fire. The distillery equipment — including the two large copper stills in the still house, the metal mash tun in the mash house, and the six large wooden wash-backs in the tun room — was replaced at various points between 1937 and 1969. Doig's original drawings show the distillery was designed with four wash-backs; there are now six, indicating that the tun room has been extended. The level of survival of the distillery equipment in a non-working distillery is remarkable.

The Architect: Charles Chree Doig

Charles Chree Doig (1855–1918) had a reputation for designing efficient and attractive distilleries. He designed around 50 distilleries, mostly in Banffshire, Morayshire and Inverness-shire. His most noted achievement was the invention in 1889 of a ventilator that improved the efficiency of kiln chimneys; this became known as the Doig Ventilator, and its pagoda-like shape has become the most characteristic single feature of Scottish distilleries. It is present at Dallas Dhu Distillery.

Setting

When approached from the south, Dallas Dhu Distillery is clearly visible across farm fields as a distinctive industrial building in the rural landscape. The wider site is largely obscured from the north and from the town of Forres by trees and neighbouring farm buildings, though the brick chimney and pagoda roof remain just visible. Immediately to the east of the distillery is an embankment lined by trees, which was the Inverness–Perth junction railway (opened 1863). This had a halt and sidings at Dallas Dhu to serve the distillery. Some of the tracks of the railway siding still exist immediately to the east of the mash house. The railway line between Aviemore and Forres closed in 1965; the track has been removed and the route is now part of the Dava Way walking and cycling path, but the embankment and fragments of the sidings survive as important physical reminders.

The immediate setting of the distillery is largely unaltered from when it was built in the late 19th century. There is no large later development nearby. The complex retains all of its late 19th-century industrial buildings alongside workers' housing to the west and two detached houses to the north built for the manager and excise officer. The historic relationships between these buildings remain clearly legible through their close proximity and shared design details. The survival of this group with relatively little change is important in showing how the site functioned when the distillery was first in operation.

Significance

Dallas Dhu Distillery is of exceptional importance because it is an extremely rare surviving example of a complete traditional whisky distillery dating from the late 19th-century boom period of distillery construction in Speyside. It retains all of the original buildings necessary for the distilling process — malt barn, kiln, mash house, tun room, still house, filling store and bonded warehouses — together with workers' housing, a storage shed, barrel rails and a barrel hoist, all substantially unaltered. The survival of the distillery equipment within a non-working building is particularly remarkable and important for understanding the various stages of the distilling process. The toilet block is excluded from the listing.