20 Severn Street

20 Severn Street, part of a terrace at 19-22 Severn Street in Welshpool, was built in 1828 as a unified development for lawyer Richard Griffiths-Parry, who previously constructed the Mansion House as his residence.

The exterior features a brick front and rough local rubble at the rear, topped with slate roofs that have broad overhanging eaves and end wall stacks for each property. The terrace is three storeys high and has a symmetrical nine-window range that includes four properties. The end bays are slightly recessed and contain passage entries with six-panelled doors and overlights. The ground floor between these recessed bays is arcaded with a series of depressed arches, linked by a projecting impost band that extends across the head of the central passage entry, which is detailed like the others. On either side of the arched recesses are paired doorways flanked by 12-pane sash windows. The six-panelled doors with overlights are set in moulded architraves, and the window recesses are rendered with painted sills.

The first-floor windows are 12-pane sashes with flat arched brick heads, although there are blind window spaces (rendered) above the main doors and central passage entrance, along with a canted oriel featuring a 12-pane sash to the right. All windows are connected by a continuous sill band, while the upper windows are 6-pane sashes located beneath the eaves.

This terrace represents an elegant example of early 19th-century urban planning and has largely maintained the uniformity of its original design.