Point Lynas Lighthouse and Telegraph Station with accommodation blocks and enclosure walls

Point Lynas Lighthouse and Telegraph Station, with associated accommodation blocks and enclosure walls, was built in the 19th century. The lighthouse stands behind the Principal Keeper's Dwelling. The lighthouse is a rectangular white-rendered tower with a taller, narrow tower at the north end, housing the telegraph room and look-out in its upper floor. A lantern projects from the north elevation. A doorway on the east side is accessed by steps through a four-centred archway with a drop-ended hoodmould. A chamfered four-centred arched window is above the doorway, and a splayed window is in the tower, which has a mock arrow-slit in its upper stage. Embattled parapets top the main block and north tower. The north elevation has a semi-circular cast-iron lantern on the ground floor, set on a wide platform enclosed by a ditch, with a half-conical roof and a grid of glazing. A corbelled oriel with a three-light mullioned and transomed window illuminates the telegraph room above.

The Principal Keeper's Dwelling adjoins the lighthouse to the south and is a two-storey, three-window range, with a central embattled porch featuring a four-centred archway and a drop-ended hoodmould. Casement windows are positioned either side and above, renewed within original chamfered openings and with drop-ended hoodmoulds. Axial and gable-end stacks have projecting cornices.

A pair of cottages, designed symmetrically, flank the main entrance to the enclosure, serving as accommodation for telegraph staff. They are rendered with exposed brick bands and dressings, and have slate roofs. Gothic detailing includes shouldered lintels to plank doors set within gable ends and to four-pane sash windows, grouped singly and in pairs in gable and long elevations. Moulded eaves cornices are present.

A boundary wall encloses the site. The north section, bordering the tower and running south towards east and west, terminates each side in a taller turret. This original section was extended further south in 1879, adding a new south wall and entrance. The original wall is embattled and incorporates an inner wall-walk supported by arched recesses. A main gate in the south wall features a stilted archway with a hoodmould beneath a steep gable springing between embattled and machicolated turrets. A main gate and footgate are separated by a chamfered pier with conical coping. An inscribed stone in the apex of the gable records the dates of the original building and later extensions.

The lantern room is partially recessed beneath a tall two-centred archway in the north wall of the tower. A Chance occulting optic, installed in 1879, is fixed within and mounted on a cast-iron base with moulded balustrading. The cast-iron tube that once contained the weights for the clockwork mechanism of the occulting device remains in place at the rear of the optic.