Auchans Castle

The ruin occupies a slightly raised knoll within former woodland policies and sits amid stone-walled parkland. The surviving plan reads as an L-shaped house that grew from an earlier T-shaped sixteenth-century core into a larger seventeenth-century mansion with added wings and domestic ranges. Walls are built predominantly of local whinstone, and much masonry and park walling were re-used from stone taken from Dundonald Castle.

The main living block originally rose three storeys above a vaulted basement. The first floor contained the principal suite of rooms while bedrooms lay above, and the top storey or garret formed a long gallery lit by dormer windows and by a large traceried window in the east gable that was later filled in. Vaulted cellars survive in the north wing and in the basement of the later northern block, while the main block itself was not vaulted.

Several towers and staircases punctuate the ruin. A square stair-tower added in 1644 by James Wallace projected from the south face and carried a viewing platform with broken pediments. A balustraded square tower with a Renaissance-style entrance is visible in the masonry, and a later stair-tower with a Renaissance doorway survives in the ruin. One tower is corbelled and stands square in section with crow-stepped gables.

An extensive west wing was added onto the north wall, rising three storeys with a garret and extended northwards by a block with two towers; that wing contained the principal kitchen. Domestic ranges were clustered on the south and east sides of an enclosed courtyard. Decorative work includes traceried masonry in the east gable, balustrades, broken pediments and Renaissance doorways, while only a small number of gun-loops are recorded among the walling.

The fabric displays a range of later interventions and losses. Parts of the west wing were re-roofed in the late nineteenth century even as sections of park wall fell into collapse. Ornate fireplaces were removed and installed in the later Auchans House, while surviving fragments in the ruin include traceried window stonework, interiors of a round tower and carved fireplace details. Stones were taken from the structure in 1885 to build cottar homes, and parts of the house were occupied by estate foresters in 1875 and used to hold prisoners of war in the First World War.

Archaeological finds and landscape evidence have been recovered from the site. An axe-hammer connected with the place is now in the local museum collection, and an urn containing human bone fragments was discovered in a small gravel mound on the grounds. Aerial photography shows rig-and-furrow cultivation across the parkland, and mid-nineteenth-century maps record a fort on the heights at Hallyards above the estate. Today the castle stands as a largely fragmentary ruin with surviving masonry elements and vaulting that testify to its stages of building and later reuse.