Built into the structure are primitive carved faces, coats of arms, and date-stones that once adorned a 17th-century house belonging to the Montgomery family. Though the original house has long since disappeared, these architectural fragments were carefully preserved and incorporated into the later gate-lodge, offering tantalising glimpses of the estate’s earlier incarnation.

The Montgomery family, who held considerable influence in the area during the 1600s, would have commissioned these decorative elements as symbols of their status and wealth. The carved faces, likely depicting either family members or allegorical figures, would have greeted visitors to the original house, whilst the coats of arms proclaimed the family’s lineage and connections. These salvaged pieces now serve as a unique form of architectural recycling, common in Ireland where valuable stonework was often repurposed when older buildings fell into ruin.

Not far from Convoy House, in the townland of Greenfield, stands another notable structure; an 18th to 19th-century house that represents the later Georgian and Victorian architectural traditions of County Donegal. Together, these buildings and their fragments create a layered history of domestic architecture in the region, from the defensive, status-conscious designs of the 17th century through to the more refined country houses of the Georgian era. For those interested in Ireland’s built heritage, these sites offer a chance to trace the changing fortunes and fashions of Donegal’s landed families across three centuries.