19 Heol Dulyn (Dublin Street)

This is a terrace of 1½-storey cottages located at 9-25 Dublin Street, Tremadog. The cottages were built from roughly coursed and squared quarried stone, with boulder footings to Nos 9 and 11, and have a slate roof and 5 stone stacks. Each cottage has a raked half dormer. No. 9 is a 2-window house with a half-glazed door on the left side. The windows are replacements within original openings. Nos. 11-25 are single-fronted, arranged in reflected pairs; they mostly have 20th century replacement doors and windows, some of which have been enlarged while others are in original openings. A small-pane horizontal-sliding sash window is present in the dormer of No. 11. A blocked lower doorway is situated between Nos. 13 and 15. No. 25 has a 2-window addition on its right side, topped with a skylight, and beyond that a single-storey addition named Yr Efail, incorporating modern details.

The rear of the terrace has seen extensive alterations and additions, all with modern features. No. 9 has a 2-storey wing; Nos. 11 and 13 have outshuts; Nos. 15 and 17 have 2-storey wings; Nos. 19 and 21 have 2-storey flat-roofed extensions; No. 23 has an outshut; and No. 25 has a 2-storey wing. The buildings form a group with Nos 9-25 Dublin Street, Tremadog.