Bathing House and a 50m length of raised sea wall at Norris Castle

This early 19th-century bathing house and associated sea wall were built for Lord Henry Seymour. The structure is constructed of coursed rubble and squared Bembridge limestone, with later repairs using red brick and concrete. The attached sea wall is built of squared and coursed quarry-faced stone.

The bathing house is a two-storey square tower built into the sea wall, providing access from the estate on the first floor, with an internal staircase leading down to beach level. Currently a roofless shell, the lower storey of the north elevation, facing the sea, is battered out. The north elevation has a blocked round-headed doorway with stone voussoirs and a chamfered outer edge on the ground floor, and a square-headed opening on the first floor. The east front features a chamfered round-headed doorway with an oculus above it. A square-headed doorway with red-brick jambs and a concrete lintel was inserted on the south elevation, above which is a scar indicating a former lean-to roof addition extending south, with the estate boundary wall forming its west wall. The west elevation, meeting the East Cowes Esplanade, has a single square-headed opening with a stone cill at first floor level.

The sea wall, with a battered outer edge, extends eastwards from the north-east corner of the bathing house. A 50-metre length survives to its full height. Beyond this, the wall is ruinous due to erosion, landslips, and storm damage, and varies in height, with some sections missing entirely.

Internally, a stone staircase in the south-east corner leads to the ground floor, where springings of a brick barrel-vault are visible. An alcove with a red-brick segmental arch is integrated into the east wall. Fragments of plaster, tooled to resemble ashlar stonework, remain on the walls at first floor level. Repairs are visible in red brick and concrete, and two steel I-beams support the top of the walls.