Early 19th century; rebuilt late 19th century; altered and reconditioned 1946-49. Range of buildings, single, 2- and 3-storey, forming distillery and incorporating former farmhouse and steading. Rubble with squared rubble quoins. Voussoired round- and segmental-arched openings.
SW RANGE: running NW-SE.
SW (PERTH ROAD) ELEVATION: outer left range, symmetrical 3-bay former farmhouse (Aldour House, now meeting rooms) with slated porch, dormerheaded windows breaking eaves; single storey bay to right. Recessed link bays with farmhouse to left and projecting M-gable (with 2 round-headed windows) to right; further advanced 4-bay range beyond to right with broad carriage arch and horizontally-aligned fenestration in stepped penultimate bay to right; broad buttressed gabled bay to outer right (offices and shop).
NE (COURTYARD) ELEVATIONS: sympathetically altered to office and shop premises with variety of elements including piended bay to left adjoining set-back bay over carriage arch.
N (MASH HOUSE) RANGE: running NW-SE.
SW ELEVATION: long 9-bay, 2-storey range to left with symmetrical fenestration and altered hayloft openings breaking eaves at centre and outer right. Set-back 3-storey range to right with further 2-storey bays beyond. Range extends to E with variety of elements including stepped roofline and broad gabled bay with lettering "BLAIR ATHOL DISTILLERY" fronting courtyard.
INTERIOR: cast-iron columns support timber roof to visitor centre with traditional timber mash-tun. Processing plant with Tun (fermentation) rooms containing 4 pine (and possibly larch) and 4 fibreglass 'washbacks'. 4 copper stills (2 spirit and 2 wash condensers) with makers plate 'R G Abercrombie & Co Ltd/Engineers/Copper Smith/19 ALLOA 66'. Spirit-safe labelled 'Banffshire Copper Works/Alexr Grant/Dufftown'.
SE (RECEPTION) RANGE: small single storey range running NE-SW, again sympathetically altered with variety of elements including main door to E and 2 2-leaf doors to W (courtyard) elevation.
NE RANGE: single storey, 2-bay, stepped range fronting Kinnaird Burn with sluice gates.
BONDED WAREHOUSES: filling store, bonded warehouse No 7, long, low, early M-gabled rubble range with small square windows and 2-leaf timber doors. 3 broad gabled warehouses (20th century) each with centre door, circular-effect opening in gablehead and flanking buttresses to NE and further similar pair to SW.
INTERIOR: early warehouse with timber rafters supported on cast-iron columns.
Largely multi-pane glazing patterns in timber framed windows, some plate glass glazing to altered elevations. Grey slates. Coped ashlar stacks. Ashlar-coped skews. Cast-iron downpipes and decorative rainwater hoppers.
BOUNDARY WALLS: low rubble boundary walls, some coped.