A 19th century tower which played a key role in defending the Sussex coastline against the threat of Napoleonic invasion is going under the hammer.
The guide price for the martello tower is up to £150,000
The Martello Tower in Norman's Bay, near Pevensey in East Sussex, is to be auctioned next month.
Martello tower number 55 was built with 73 other towers along the south coast nearly 200 years ago.
It is only one of 25 left standing, and has been granted planning permission to convert it into a home.
Four of the towers were destroyed by the military to test guns or explosives, while 15 were demolished so the stone they were made of could be re-used.
Another 30 have been lost to coastal erosion.
The guide price for the derelict structure in Norman's Bay is between £130,000 and £150,000, for which the buyer would be able to incorporate a living room with sea views, a study and two bedrooms.