Originally 103 towers were built between 1805 and 1812 to resist a potential invasion by Napoleon.

29 were built between Aldeburgh and St Osyth Stone between 1808 and 1812 to protect Essex and Suffolk, the rest having been built a few years earlier across the Kent and Sussex coasts. They were built of brick, 13 foot thick on the seaward side, stood about 30 foot high and were equipped with a cannon on the roof. A supporting fort, or Redoubt, was built at Harwich.The largest tower is Martello CC, at Aldeburgh, which is effectively four towers joined together.

Photo Ian Giles Photos
Martello A St Osyth Used as a museum
Martello C Jaywick Bought by Essex County Council as an arts venue for visual and digital arts, opening Sept '05. On the roof, is a purpose-built look-out station, to be used by the National Coastwatch Institute.
Martello D Clacton Unused
Martello E Clacton Once a water tower, now unused
Martello F Clacton Private, unused
Martello K Walton Private, unused
Martello L Felixstowe Private, unused
Martello M Felixstowe Once a water tower, now unused & private
Martello P Felixstowe Coastguard lookout, now unused
Martello Q Felixstowe Converted to a house
Martello T Felixstowe Private, unused
Martello U Felixstowe Unused
Martello W Bawdsey Converted into a house in 1985
Martello Y Bawdsey Converted into a house in 2010
Martello Z Alderton Unused
Martello AA Hollesley Converted to house
Martello CC Aldeburgh Unique quadruple tower south of the town. Owned by Landmark Trust, available for rent.

Scroll down for photos of Martellos C to W

Scroll down for photos of Martellos Y to CC