"Fort Hommet (or Fort Houmet) is a fortification on Vazon Bay headland (or houmet in Guernésiais) in Castel, Guernsey. It is built on the site of fortifications that date back to 1680, and consists of a Martello tower from 1804, later additions during the Victorian Era, and bunkers and casemates that the Germans constructed during World War II.
n 1680 it is recorded that there was a fortification with one gun on the site. Following the French attempt to invade Jersey in 1781 improvements were made to island defences with Guernsey loophole towers being built, including the nearby one at Vazon. During 1795 the fortifications were improved on the headland with additional gun positions added. By 1805 six guns were recorded on the site. The connection between St Peter Port and the fort were improved with an upgrade of the road to military standard around 1808, using money arising from the sale of land from the reclaimed Braye du Valle.
The Martello tower was constructed in 1804 after the onset of the Napoleonic Wars, and during the tenure (1803-1813) of Lieutenant Governor General Sir John Doyle. To simplify matters, Doyle had a local builder named Gray construct the tower, and two others, under the rubric of "fieldworks", thereby bypassing the Ordnance Corps.
The Fort Hommet tower, like the other two Guernsey martello towers, Fort Grey and Fort Saumarez, was intended as a keep for the battery in which it was placed. The Guernsey martellos are all smaller than the British martello towers, with the Fort Saumarez and Fort Hommet towers being smaller than the Fort Grey tower.[Note 1] Each mounted a 24-pounder carronade on the roof to support the battery. Fort Saumarez and Fort Hommet also have exterior staircases up to the second floor.
During the Victorian Era, the fort received additional batteries and barracks. In 1852, 68-pounder and 8" shell guns replaced some of the 24-pounder guns in the batteries.
The largest addition, however, occurred during World War II and the German occupation of the Channel Islands. The Germans recognized the enduring utility of the site and fortified it further, creating the Stützpunkt (Strongpoint) Rotenstein."
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In the 1960s art of the German modifications were made into a shrine decorated with shells from local beaches by Hubert le Galloudec.
Sadly vandalism meant that had to be closed and repaired. It is now only open on a few Saturdays between March and October