A "SECRET" Cold War nuclear bunker 15ft underground may not be everyone's idea of the ultimate des res.
But offers over the auction guide price of £7,000 are likely to secure the unique piece of real estate "in a stunning Wolds location".
The concrete structure is in a field on the outskirts of Baumber, near Horncastle, and is accessed via a metal hatch leading to a flight of steps.
The former Royal Observer Corps bunker measures 15ft by 7.5ft.
It has 12-watt lighting, with an outside connection for a generator, a solid fuel-burning stove and new cupboards and a bed.
The floor has been re-laid with marine plywood and lino and the walls are insolated and clad.
Above ground is a 300 square metre compound, bordered by hedging.
The "rare and exciting chance to acquire a piece of Cold War history" takes place during an auction at The Bentley Hotel, in South Hykeham, on May 12 at 7pm.
Rob Ward, a partner in JHWalter, the property company behind the auction, also handled the sale of the Baumber bunker in 2003.
He said: "I think it would appeal to just about anyone.
"Last time around there was a lot of interest in it and I have no reason to doubt there should not be now.
"The individual who bought it last time did not live in it but had put a caravan on the site.
"It's a very cheap plot for a caravan and it's in a beautiful location with plenty of nice pubs locally and close to the Viking Way.
"Whether people want a nuclear bunker or not, the plot itself is great."
Such bunkers were designed for three-man teams to monitor the progress of a nuclear attack.
There were about 1,500 dotted around the country. They were decommissioned in 1992, after the fall of the Berlin Wall and the end of the Cold War.
Melvin Grosvenor, 59, who lives in Baumber, questioned the appeal of the lot.
He said: "I would imagine it will cost more to sell this than what they'll get back.
"The Cold War was a big deal at the time, but if this had Second World War connotations I think a sale might be more successful.
"They might as well fill it in with concrete than do anything else with it.
"I can't imagine anyone wanting to live underground in something like this."
The sales brochure states: "There is space around the bunker for parking touring caravans, tents, or motor home.
"The site itself would provide an excellent base to discover and enjoy the Lincolnshire Wolds."