What is recorded here

Hamble Common holds an Iron Age linear earthwork, St Andrew's Castle and later gun platforms beside Southampton Water. The tidal land has taken the castle body while leaving foundations exposed at low water, turning defence into a lesson about impermanence. People have lived, farmed, built and forgotten there across centuries, and the sea continues rearranging what they believed permanent.

The National Heritage List for England records Promontory defined by an Iron Age linear earthwork, St Andrew's Castle and additional remains on Hamble Common as a scheduled monument. The saved point comes from the centre supplied by the official record. Listing does not by itself mean that the public may enter the place.

St Andrew's Castle on Hamble Common is a medieval structure, likely built in the 13th or 14th century, and is remembered for its strategic position and as a symbol of local feudal power. The site is important as part of the region's military and historical landscape, with additional significance from the earlier Iron Age earthworks nearby.

The historic-place record does not grant public access. Check current conditions and ownership before entering land or a building.