His mason may have been William Wallace, although this attribution is only stylistic. On the south facade is a bay window, a feature new to Scotland in the early 17th century. The east façade is dominated by seven tall chimneys.
It's possible that his stoneworker was William Wallace, but this identification is purely aesthetic. The southern face of the building features a bay window, a design element that was new to Scotland during the early 17th century. The eastern facade is notable for its seven tall chimneys.