Tower 22 was built as a twin to Tower 23, and their purpose was to defend the Willop Sluice in Hythe Road, Dymchurch, in order to allow the sluice to be opened and flood the area if necessary.
Sandwiched between the sea wall and a road, Tower 22 was the second most recent south coast Martello to be lost; it was destroyed in 1956, in an era before Martellos were regarded as ancient monuments. Kent County Council ordered its destruction to make way for road widening, and, despite being in poor condition, proved so resistant to conventional demolition methods, that after several days of failure the Army was called in to use explosives.1 Even then, problems were experienced. After the smoke cleared from the explosion, it was found that the tower still stood. It took several explosions to finish Tower 22 off.
 |
 |  |
| Dymchurch Redoubt | Tower 23 |