3, High Street

3 High Street is a town house that has been converted into a photographer's studio and shop. It dates back to the 15th century, with alterations and extensions made in the 19th and 20th centuries. The building features a rendered and whitewashed timber frame, with rubblestone and brick at the rear, and has a plain tile roof. It stands two storeys tall, with an attic and cellar.

The front of the building has a two-window range on the first floor, featuring 20th-century windows, and a 20th-century shop front below. There are doors located at the far left and centre right. At the rear, there is a two-storey brick wing from the 19th century and a lean-to extension, with 20th-century windows. The rear wall is made of rubblestone, partly rebuilt in brick, and includes a high-set section of a moulded stone lintel with a depressed Tudor arch profile.

Inside, the ground floor has a character typical of the 20th century but retains intersecting bridging beams with a wide flat chamfer and slight ogee stops. The front-to-rear beam likely aligns with the chamfered wall post above, and one of the 15th-century roof trusses can be found in the roof space. The first floor also has a mainly 20th-century character, but an old lintel is visible above a front window, along with part of a bridging beam. In the roof space, there is close-studded framing on the upper part of the front wall and in the west gable wall. Remains of a lateral stack can be seen in the rear wall, while jowled wall posts and curved braces support the roof trusses.

The roof consists of two and a half bays of cambered tie beam trusses with two tiers of through purlins and curved wind-braces. The trusses are particularly unusual, featuring a combination of king and queen posts. The queen post has struts connecting the ties to the lower tier of purlins, and curved braces extend from the collars to the upper tier of purlins, with a king post rising from the tie to the apex of the principal rafters. The preservation of so much of the structure from a 15th-century house in an urban setting in Northamptonshire is of significant architectural interest.