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Cilybebyll Auxiliary Unit Operational Base is a Second World War defensive installation located in Wales that formed part of the wider network of Auxiliary Units established across Britain. The site dates to 1940-1941, during the period of anticipated German invasion, and would have served as a concealed operational headquarters for local resistance personnel trained to conduct guerrilla warfare in the event of successful enemy landings. The base comprises underground or semi-subterranean structures typical of Auxiliary Unit installations of this period, designed to provide shelter and command facilities while remaining hidden from potential discovery. As one of Wales's surviving examples of this specialised wartime infrastructure, the site represents an important aspect of Britain's civil defence preparations during the Second World War.
Cilybebyll Auxiliary Unit Operational Base is a scheduled monument protected by Cadw under reference GM620. View the official record →
Cilybebyll Auxiliary Unit Operational Base is a Second World War defensive installation located in Wales that formed part of the wider network of Auxiliary Units established across Britain. It is designated a Scheduled Ancient Monument by Cadw under reference GM620.
Cilybebyll Auxiliary Unit Operational Base dates from the post medieval/modern period, and is classified as a auxiliary unit site. It is one of over 32,000 scheduled monuments protected across Britain.
Cilybebyll Auxiliary Unit Operational Base is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is GM620.
Several scheduled monuments lie within 10 km, including Neath Roman Site (6.6 km), Court Herbert Cross & Grave Slab (6.7 km), Neath Abbey (7 km).
Aubrey generates in-depth historical research for any address in Britain — drawing on scheduled monument data, Domesday records, Roman heritage, PAS finds and medieval history to reveal the complete story of a landscape.
Research the area around Cilybebyll Auxiliary Unit Operational Base