Port Seton House, 126 High Street, Cockenzie

Port Seton House is an early 19th century, symmetrical and plain two-storey building with six bays, forming a pair of houses. It features a basement and a modern extension at the rear. The rear is constructed of random rubble, while the front is brown harled with painted margins.

The south elevation has a central door for each house, which is plain boarded and has a five-pane fanlight above it. Each door is flanked by a window on either side, and there are three windows on the first floor.

On the north elevation, the west house has three windows on the ground floor, located above a central door and a small basement window in the outer bay, with two windows on the first floor in the outer bays. The east house has one window on the ground floor in the inner bay next to the modern extension, and three windows on the first floor.

Both the east and west elevations feature a tiny attic window in each gable head. The windows are timber sash and case, with twelve panes in the west house and four panes in the east house. The roof is covered in ungraded Welsh slate with plain skews. There are stacks at the gables and centre ridge, along with thackstanes that are harled with plain copes and four plain cans on each.

The boundary wall is made of harl pointed rubble with squared rubble coping, which transitions to ashlar at squared piers topped with domed caps.