Tyn-y-llan including attached outbuilding range

C18 2-storey, 2-window house of mortared rubble masonry, limewashed, with single bay wing (formerly single storey) in line to N, and added outbuildings adjoining. Modern slate roof with small gabled half-dormers at 1st floor; end chimneys with dripstones. The principal elevation faces E, the doorway offset to the L (S) with a single window to the left and 2 windows to the right; windows are 4-pane sashes with slate sills, with an enlarged ground floor 'bay' window inserted between the two windows to the right. The door is boarded, with a weathered tablet above. The rear elevation has some modern windows and some small 4-pane sashes set under the eaves; there is a single gabled half-dormer in the single bay wing to the N. There is a single long fixed 10-pane light inserted in the S gable apex.

The outbuildings abut the N end of the house and are single storey; the former cowhouse has 2 doors flanking 2 ventilation slits, the lower outbuilding to the N end a single door to the L (S).

Interior not viewed at the time of the survey.