2, Castle Street

No. 2 Castle Street is a house built between 1723 and 1728 for James Brydges, the Duke of Chandos. It was designed by Benjamin Holloway or Fort and Shepherd, who were the Duke's surveyors in London. The building features painted Flemish-bond brick with stone coping on the right gable end, painted stone rusticated quoins, architraves, cills, and a doorcase. It has a double Roman tile roof, with a brick stack on the left gable end and at the rear right. The house has a 4-unit plan and stands three storeys tall with a three-window range.

The windows include segmental-arched architraves and moulded cills, with 6/6-pane sash windows featuring thick glazing bars in the two left ranges. On the right half of the facade, there is a 19th-century flat-roofed three-storey canted bay that has 6/6-pane sash windows in forward frames, each floor topped with a cornice. The doorcase, located to the left of centre, has a moulded architrave with a heavy stepped keystone that reaches up to a floating cornice. The door itself has six raised and fielded panels and an iron knocker.

On the right return facing West Quay, there is an 8/8-pane sash window on the ground floor beneath a 6/6-pane sash window in the canted bay on the first floor. Inside, the house retains some late 18th-century cornices. The terraces of houses in Castle Street are significant as a group, notable for their scale and ambition, which is unusual outside of London's West End.