Plas Newydd (Premises of Y Ewpwrdd Cornel)

Plas Newydd, also known as the premises of Y Ewpwrdd Cornel, is a building constructed with coursed rubble masonry, which is rendered at the front and in later extensions on the left gable ends. It features a moderately pitched slate roof on the rear range and has a square stone stack on the left with water tabling. The façade includes two semi-apsidal bays, which were formerly slate hung and have hipped slate roofs, flanking a slightly recessed central bay that has a pediment treatment. There are lateral stacks on the extreme right and on the left side of the centre and left-hand bays, with the latter being rendered.

The central bay's pediment-like gable is supported by a timber dentil cornice above a bipartite Victorian sash window, which is flanked by thin half-round pilasters. The flanking apsidal bays have a dentil eaves cornice, and the tripartite Victorian sashes are canted back. All first-floor glazing was formerly small paned sashes. The ground floor features a continuous fascia over shopfronts, with recessed entrances that have modern doors and shop windows.

There is a later asymmetric twin-gabled extension on the left side facing Meyrick Street, which has bargeboards and exposed purlins, and is pebbledashed. This extension includes Victorian sash windows, with one at the apex of the left gable, three on the first floor (narrower on the right), a modern window on the ground floor left, and a doorway in the centre with a small window to the left, along with a cellar opening below that has a wooden shutter. A Victorian sash window is located to the right, and a low flat-roofed extension adjoins the right apsidal bay.

The bay facing Eldon Square, which has a pediment, was known as the Red Lion Public House in 1820. Inside, the first floor retains sturdy chamfered beams.