The immediate neighbour of the Dymchurch Redoubt, Tower 21 was the last in the line of the low-level towers, most of which were lost to the sea. As with Tower 20, the tower was described as being in a critical position in 1873,1 and believed to have been washed away in the early 20th century.2

References

  1. Report of Committee on Coast Defences 1870 (PRO WO 33/25) p.35
  2. Sutcliffe, S. Martello Towers (1972) p.88

Tower
20		 Dymchurch
Redoubt