A Category A listed building,[1] the castle formally formed part of the lands of Arbroath Abbey.
[2] Historic Environment Scotland's listed-building report from 1972 described the castle thus: Modified Z plan tower house, four storeys with vaulted basement.
Harl and slate, rounded and corbelled angles.
[1]The castle was subsequently restored with modern amenities.
[2] The novelist and travel writer Norman Douglas spent part of his childhood in Tilquhillie, the home of his paternal ancestors.