This lighthouse (built by William Crispe and Benjamin Lund.) was substantially altered in 1819, when a new structure was built around the original one. It was altered again in 1867. The Flat Holm Society works for the preservation of this station; see flatholm.co.uk
Tower Height: 99
Height of Focal Plane: 164
Characteristic and Range: Three flashes every 10 seconds, white and red sectors.
Description of Tower: White, conical stone tower attached to one-story dwelling.
This light is operational
Date Established: 1737
Date Present Tower Built: 1737
Fog Signal: Foghorn deactivated in 1988.
Current Use: Active aid to navigation.
Open To Public? Grounds only.
Guided tours leave from Barry from April to October. For information call 01446 747661.