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Fort Blockhouse is a Napoleonic defensive fortification located in Hampshire, constructed during the early nineteenth century as part of Britain's coastal defence strategy against the threat of French invasion. The fort exemplifies the military engineering principles of the Napoleonic period, featuring the characteristic low, compact design with gun emplacements intended to provide effective firepower against approaching vessels. Built to protect the Hampshire coast during one of the most significant periods of military tension in British history, the fortification remains a testament to the defensive preparations undertaken along the south coast between the French Revolutionary and Napoleonic Wars. The monument survives as a scheduled ancient monument and represents an important example of early nineteenth-century military architecture in southern England.
Fort Blockhouse is a scheduled monument protected by Historic England under reference 1001873. View the official record →
Fort Blockhouse is a Napoleonic defensive fortification located in Hampshire, constructed during the early nineteenth century as part of Britain's coastal defence strategy against the threat of French invasion. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1001873.
Fort Blockhouse 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 1001873.
Several scheduled monuments lie within 10 km, including Fort Monckton (2.1 km), Southsea Castle (2.1 km), Spitbank Fort (2.3 km).
This page is just one thread. A full Aubrey report pulls together 15 strands of Fort Blockhouse'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 Blockhouse stands on Bracklesham Group And Barton Group (Undifferentiated), bedrock that formed in the Eocene. The rock here is sand, silt and clay.