[1] The bunker is in Castel on the northern side of Vazon Bay and is part of a complex of reinforced concrete fortifications built by the Germans on the site of Fort Hommet.

[2] Fort Hommet is on a headland that lies 3.3 miles (5.3 km) north west of St Peter Port on the other side of the Island.

[3] Fort Hommet was constructed on the Vazon Bay Headland in the late Napoleonic Wars era as part of the anti-French defences although there had been fortifications recorded here as far back as 1680.

As part of these plans this restored casemate was one of 21 similar standard constructions of a design type Jäger,[5]: 57  built to house 10.5cm K331(f) guns.

Many of the bunkers including this casemate at Fort Hommet, were buried in an attempt to return the coastal landscape to its pre-war condition.