138-148 Northgate

138-148 Northgate is a three-storey building constructed in the 18th century, featuring pinkish brick and stucco with incised lines, topped with Welsh slate roof coverings. The building has a double-pile plan with a rear range.

The main (west) elevation consists of eight bays with a low-pitched roof and two chimneys at either end. The central section has a four-bay pediment and a round window, framed by rusticated Ionic pilasters. The entablature is supported by similar pilasters at the ends. The second bay features a second-floor oriel window, while the other windows are sashes set within moulded architraves. Notably, the first-floor window in the first bay has a console bracketed cornice. Modern shop fronts occupy the ground floors, and the first floor of bays five to eight. The oriel window in the second bay displays two plaques: one stating 'Where/ Edward Pease/ Resided/ 1820' and the other 'First/ Public Railway/ Inaugurated Here'.

On the left return, there is a canted corner bay with a second-floor oriel window, accompanied by four bays featuring entablature and rusticated Ionic pilasters. All windows here are 20th-century replacements in moulded architraves, with first-floor windows also having console-bracketed cornices. A modern shop front is present on the ground floor of the first bay.

The rear (east) elevation shows scattered fenestration with various original openings that have brick arches, many of which are blocked, alongside several inserted openings. There are also numerous small brick extensions. The left three bays are the most coherent, built from 18th-century brick and featuring a round-headed stair window and an 18th-century rear range.

Inside, the ground floors are occupied by open-plan shops, and refurbishment has removed all original features. Other inspected areas of the interior revealed no notable historic features.