Mona Inn, Holyhead Road, is a purpose-built inn and depot complex adjacent to the London to Holyhead road (A5). Designed and built by Thomas Telford, it was completed in 1830. Situated to the south of the road, the inn consists of a five-bay symmetrical building of two main storeys, with an annex on the west. Behind it, stables, coach-houses and other buildings form a double quadrangle.