An unusual building of some antiquity stands as a substantial ruin beside the river Annick Water in the holm on the southern bank.
A road through the woods connects the site to the stables and to the location of the old Mansion House.
This building's remains are constructed of sizeable river boulders as foundations and well worked and carved freestone or sandstone ashlar blocks.
It had a large window and door facing onto the holm, whilst the wall facing the river has largely collapsed and may have had two large windows.
The door has been carefully blocked and the 'holm' facing window may have been made into an entrance.

The relatively small size of the structure may suggest a social purpose, such as a type of 'Summer House' or 'Cottage ornée' from the early development of the estate, circa 1747.
Its last occupant was a Mackay, who was a poet or writer.
Charles Mackay was editor of the Glasgow Argus for four years from 1844; he returned to London and joined the Illustrated London News.
Another more obscure Charles Mackay, an actor and writer, belongs to the early 18th.
century.

Aiton gives the following description of a building in the Eglinton Estate which may have inspired the construction of this summer house if this is what it is, saying that "Near to the gardens, in a remote corner, more than half encircled by the river, a remarkably handsome cottage has been reared, and furnished, under the direction of Lady Jean Montgomery, who has contrived to unite neatness and simplicity, with great taste, in the construction of this enchanting hut.
That amiable lady, spends occasionally, some part of her leisure hours, about this delightful cottage: viewing the beauties, and contemplating the operations of nature, in the foliage of leaves, blowing of flowers, and maturation of fruits; with other rational entertainments, which her enlightened mind is capable of enjoying.
"Lady Jane Hamilton, the Earl's Aunt built or extended 'Lady Jane's Cottage' which lay beside the Lugton Water.
She used this building to teach domestic economy to peasant girls.
This may represent a later use of Lady Jane's cottage.
An unusual building of some antiquity stands as a substantial ruin beside the river Annick Water in the holm on the southern bank. A road through the woods connects the site to the stables and to the location of the old Mansion House. This building's remains are constructed of sizeable river boulders as foundations and well worked and carved freestone or sandstone ashlar blocks. It had a large window and door facing onto the holm, whilst the wall facing the river has largely collapsed and may have had two large windows. The door has been carefully blocked and the 'holm' facing window may have been made into an entrance.
The relatively small size of the structure may suggest a social purpose, such as a type of 'Summer House' or 'Cottage ornée' from the early development of the estate, circa 1747. Its last occupant was a Mackay, who was a poet or writer. Charles Mackay was editor of the Glasgow Argus for four years from 1844; he returned to London and joined the Illustrated London News. Another more obscure Charles Mackay, an actor and writer, belongs to the early 18th. century.
Aiton gives the following description of a building in the Eglinton Estate which may have inspired the construction of this summer house if this is what it is, saying that "Near to the gardens, in a remote corner, more than half encircled by the river, a remarkably handsome cottage has been reared, and furnished, under the direction of Lady Jean Montgomery, who has contrived to unite neatness and simplicity, with great taste, in the construction of this enchanting hut. That amiable lady, spends occasionally, some part of her leisure hours, about this delightful cottage: viewing the beauties, and contemplating the operations of nature, in the foliage of leaves, blowing of flowers, and maturation of fruits; with other rational entertainments, which her enlightened mind is capable of enjoying."Lady Jane Hamilton, the Earl's Aunt built or extended 'Lady Jane's Cottage' which lay beside the Lugton Water. She used this building to teach domestic economy to peasant girls. This may represent a later use of Lady Jane's cottage.
Cunninghamhead Estate