Holm, Scotland

The monument comprises an extensive area of dry-stone structures, centred on the excavated remains of a broch.

Late 19th century. 5-bay symmetrical rectangular-plan former Temperance Hall with 2-bay entrance projection to rear (NE angle). Harl-pointed roughly coursed rubble. S (PRINCIPAL) ELEVATION: 2- leaf timber door with 2-pane fanlight in bay to centre.

1877, extended later. Long, low rectangular rubble pier, extended E at seaward end; chamfered concrete blocking course along E side; low, harled wall along W side with battered base; cemented surface; cemented slipway to E.

Later 19th century. Single storey, 3-bay rectangular-plan symmetrical cottage. Harled. Concrete cills. E (PRINCIPAL) ELEVATION: boarded door with letterbox fanlight (boarded) in bay to centre. Window in each bay flanking.

The monument is a probable Norse castle, overlying and incorporating an earlier structure of probable Pictish (Late Iron Age) date.

The monument consists of the remains of a prehistoric settlement which is beginning to appear in an eroding coastal section on the shore of St Mary's Bay.

The monument is a coast artillery battery, built during the First World War and upgraded during the Second World War.

The monument comprises the remains of an enclosed prehistoric settlement dating probably to the Bronze Age or early Iron Age (sometime between about 1500 and 200 BC).