Tower 25 defended the Marshland Sluice with Tower 24. It stands in a car park and by 1988 was in poor condition despite having been restored externally at the same time as Tower 24.1
The roof and central pillar are missing for some inexplicable reason, but a replacement roof has been put in. It appears to have a manhole in it, as daylight can be seen by looking upwards through the windows.
By 1991, the stucco was being stripped off prior to work being carried out. Restoration has now taken place, and the tower has had its stucco rendering replaced. A new door has been knocked through at ground level, as the wooden floor is missing. New windows have been put in, although vandals have taken to breaking them. The vegetation growing on the roof and round the base has also been removed. Tower 25 is possibly the only empty tower that is regularly maintained, whereas others are just left to deteriorate.
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| Tower 24 | Tower 26 |