Formerly the Customs House

The building known as the former Customs House, originally Portland House, was constructed in 1855, with Nos 2 to 7 likely built shortly thereafter. It features a simple classical style, consisting of two storeys, except for No 1, which is three storeys tall. The buildings have three-window fronts with prominent hipped end pavilions. The exterior includes rusticated quoins, except for No 6, which has end pilaster strips, and is finished in scribed render, cement render, and roughcast. The roofs are slate with wide boarded eaves, and there are six chimney stacks made of cement render and two of rubble.

The windows are primarily 12-pane sash windows, except for the ground floors of Nos 1 and 7, which have 16-pane windows. No 1 features lintels, while Nos 2 to 7 have lugged architraves, some with keystones. No 2, formerly the Customs House, has cill and decorative bands. The entrances are arched for Nos 2 to 6, with No 2 having a rusticated surround, bracketed hoods on Nos 3 and 5, and panelled architraves with keystones on Nos 4 and 6. Nos 1 and 7 have open pedimented doorcases with slender columns. The doors are recessed, with Nos 2 and 4 to 7 having six panels, No 3 having a modern door, and No 1 featuring an eight-panel door. All except No 6 have five-pane fanlights, and Nos 1 and 7 have panelled reveals at their doorways.

The right end wall is plain scribed render, and there are various cross ranges at the rear. The left end wall overlooks the River Aeron and has sash windows and a side entrance. A datestone at the base reads: "Portland House built by Benjamin Evans in 1855."