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Fort Darnet is a Napoleonic coastal defence fort situated on Darnet Ness in the Thames Estuary, Kent. Constructed in the early nineteenth century as part of the extensive fortification programme undertaken during the Napoleonic Wars, the fort exemplifies the military architecture designed to protect the English coast against potential French invasion. The structure comprises a substantial masonry fortification with characteristic angled bastions typical of the period's defensive engineering. Now substantially ruined and subject to tidal inundation, Fort Darnet remains an important archaeological and historical witness to Britain's nineteenth-century coastal defence strategy.
Fort Darnet, Darnet Ness is a scheduled monument protected by Historic England under reference 1019642. View the official record →
Fort Darnet is a Napoleonic coastal defence fort situated on Darnet Ness in the Thames Estuary, Kent. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1019642.
Fort Darnet, Darnet Ness is a Scheduled Ancient Monument, legally protected by Historic England (NHLE) — the body responsible for designating and safeguarding heritage sites in England. The official designation reference is 1019642.
Several scheduled monuments lie within 10 km, including World War II Heavy Anti-aircraft gunsite (TS3) at Wetham Green, 460m north of Red Brick Cottage (4.4 km), Chatham Dockyard, the Dockyard wall (5.3 km), Former guardhouse (5.4 km).
This page is just one thread. A full Aubrey report pulls together 15 strands of Fort Darnet, Darnet Ness's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Fort Darnet, Darnet Ness stands on Thanet Sand Formation, bedrock that formed in the Thanetian. The rock here is sand, silt and clay.