3 Waterloo Terrace

3 Waterloo Terrace, along with 1-4 Waterloo Place, is a group of buildings located on Salop Road in Welshpool. These structures are built from local ashlar stone and feature slate roofs with brick axial stacks. The terrace consists of two storeys and has an eight-window range, with two houses on either side of a central passageway. The layout is symmetrical, with two-unit houses at each end, one of which includes a shop, and single-unit houses in the center, with their doorways located on either side of the round-arched passage entry.

All doorways have six-panelled doors with overlights, framed by moulded architraves topped with cornice hoods. The windows are 16-pane sash types with painted sills, and there are blind windows above the doors of the outer houses. The shop in the right-hand unit features a two-light mid-19th century shop window with small panes and a moulded architrave.

The return elevation facing Salop Road is also two storeys high and has a nine-window range, which includes three houses and a shop front that continues from the Waterloo Place shop. This elevation is made of brick and has full-height pilasters flanking the doorways. The hipped slate roof has end wall stacks and oversailing eaves. The shop to the left of the terrace has a doorway flanked by late 19th-century shop windows on the ground floor, with 16-pane sash windows above that have painted gauged brick heads. Each of the houses numbered 1 to 3 also features a central entrance flanked by two-pane sash windows on each floor. Number 3 retains its original six-panelled door, and all entrances have panelled architraves.