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Cilybebyll Auxiliary Unit Operational Base is a Second World War defensive installation established in South Wales as part of the British Home Guard's clandestine stay-behind network. The base functioned as an operational centre for the Auxiliary Units, a secret guerrilla force trained to resist and harass any potential German invasion of Britain. Located in the Neath Valley, the site comprises underground bunkers and associated surface structures typical of such wartime installations, designed to provide secure command and communications facilities. The base represents an important element of Britain's civil defence preparations during the latter stages of the Second World War, reflecting contemporary anxieties about homeland security and military contingency planning.
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 established in South Wales as part of the British Home Guard's clandestine stay-behind network. 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 the UK.
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 the UK — 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