18 Great Oak Street

18 Great Oak Street is a mid-19th century building inspired by late Georgian architecture. It is a three-storey structure with a single window front set in reflected pairs. The front is finished in scribed cement render, featuring a plinth and quoins. The building has an overall slate roof with wide bracket eaves and blue brick chimney stacks. The windows are horned six-pane sash types, while the shop fronts mostly consist of four-pane windows with cornices, although No 19 has modern alterations. Alderson's, located between Nos 19 and 20, has a broader full-width shop front with a plate glass window and end pilasters under an overall cornice. The doors are part-glazed, except for No 20.

No 17 extends around the corner into High Street, sharing a similar scribed cement render elevation, horned six-pane sashes, and a modern small shop window. Nos 45 and 46 High Street are adjacent to the left, beyond a round arched opening that leads to a passage for the rear yard. This arch features an architrave, keystone, and a boarded door. The right-hand gable end and rear elevations are slate hung and include casement windows, along with a modern single-storey brick cross range. There is a tall brick stack at the rear of Nos 45 and 46, which has some metal frame casement windows. The first and ground floors are made of rubble with a brick lean-to.

The cobbled yard is enclosed to the south and west by brick outbuilding ranges, which have small pane metal frame windows with cambered heads. The outbuilding to the west serves as the cross range to No 22 Great Oak Street.