Lincluden College Tower is a 16th century stone tower house, founded by the Provost William Stewart. The collegiate church was founded in 1389, by Archibald the Grim, 3rd Earl of Douglas on the site of an earlier nunnery. After the Reformation, the three storey range immediately adjacent to the church, was doubled in length and a four storey tower added to its northern end. Guarding the ground floor entrance, is the remains of a projecting semi-octagonal stair turret, with gunloops. The tower stands in the bailey of Kirkhill Mote and 5 miles east is Torthorwald Castle.