123 Mostyn Street

Nos 121 and 123 Mostyn Street in Llandudno are Italianate style buildings that stand four storeys tall and feature two windows on the front elevation. The buildings have a hipped slate roof and are constructed of stucco, adorned with a cornice that includes modillions and dentils, as well as a frieze decorated with quatrefoils and quoins. The top floor has two square-headed sash windows set in architraves. The second floor features two camber-headed sash windows, also in architraves, which have keystones. On the first floor, there are two three-light windows with cornices.

The south-facing elevation has three windows, including one that faces North Parade, and maintains the same architectural style. The first floor here has a central window with two round-headed lights, flanked by pilasters and topped with a cornice, while the outer bays feature canted three-light bay windows. The ground floor consists of shopfronts and includes a verandah supported by iron columns with capitals and spandrils, along with an eaves band.