30 Quay Street

30 Quay Street is a town house located at the left end of a terraced row, attached to No 31. The building features painted stucco and a slate roof with a 20th-century modillion eaves cornice and red brick end stacks. It is three stories tall with a cellar and has a three-window range of 12-pane sash windows, a central doorway, and a tripartite sash window to the right. There are two cellar openings in the plinth on the outer sides of the lower windows. Access to the plain doorway is via four steps, and it retains its original fielded-panelled 8-panel door. A plaque at the top right reads, "This pine end belongs to Colonel Owen." A straight joint to No 31, which steps in at the top floor, suggests that there may have been a two-storey house that was raised a storey in the earlier 19th century.

At the rear, there is a northwest wing with a 12-pane sash window on each floor on the south return, a hipped close-eaved roof, and a west end stack. There is also a lower two-storey addition to the west that aligns with the medieval town wall.

Inside, there is a fine earlier 19th-century open string staircase with scrolled treads, stick balusters, a narrow hardwood ramped rail, and slim column newels. The staircase rises from the ground floor to the attic. The interior includes a contemporary flat-headed staircase window, six-panel doors with sunk panels, and moulded ceiling borders, some of which are reeded with square rosettes and some with leaf scrolls. There is a basket-arched sideboard alcove with reeded pilasters and an arch leading to the northeast front room. The fireplace surround is made of grey marble from the mid to later 19th century and features carved consoles.