3, 4 And 5, Union Street

Three houses in a terrace, now used as offices with shops, were built in 1806 and have 20th-century additions. They were likely overseen by the City Architect, John Palmer, but may have been based on earlier designs by Thomas Baldwin. The buildings are made of painted limestone ashlar and have a slate roof.

The exterior features three storeys, an attic, and a basement, with a total of nine windows. Most of the windows are twelve-pane sashes set in plain reveals, with four raking dormers—two of which are twelve-pane sashes and two are 20th-century casement dormers. The first bay is slightly brought forward, but there is no corresponding bay at the opposite end. The second floor has all windows aligned to a thin sill band, with the second bay being blind. Bays seven to nine have simple balconettes, while bays one to three on the first floor have replacement two-light casements, and the rest have deep twelve-pane sashes, all aligned to a sill band. Bays four and seven feature moulded architraves with cornice hoods on pilasters. The ground floor has three wide 20th-century shopfronts, overlapping with No. 6 to the right. Above the first-floor windows, in bay one and four other locations, there are irregularly spaced small sunk horizontal panels, topped by a full entablature with a blocking course and parapet. The party divisions are coped, with deep ashlar stacks.

The interiors have not been inspected. The street, which is now pedestrianised, was laid out by Thomas Baldwin in 1789, but this early 19th-century section on the west side does not clearly reflect Baldwin's style. It is likely that there was originally an additional bay at the right end to balance the composition, creating an ambitious row reminiscent of the palace-fronted designs of Robert Adam.