One of the most unique properties in the country is on the market, complete with 4,000 bottles of wine to sweeten the deal.

Built by a mining company, the one-of-a-kind wine cellar is buried deep inside cliffs outside Hobart and is proof that not everyone is suffering in the state's gloomy economic times.

The entrance to the cellar is a heavy bank vault door at the top of the Tinderbox cliffs and four flights of spiral staircase lead to a banquet room like no other.

Another five flights of stairs through a stone tunnel lead onto the cliff face, just metres from where the waters of the River Derwent lap at the rocks.

The nine-storey deep cellar was the dream retirement home of a South African banker who used it to wine, dine and entertain guests.

He had planned to build a house on the property but never got past the cellar, helipad and a giant shed.

A front door with a difference: one of the entrances to the property is via the cliff face. ( ABC )

He has now left Tasmania - and the ultimate man cave - behind.

One of the engineers of the secret cellar, Daniel Hugo, says he was shocked by the plan initially.

"I think the idea originally was crazy," he said.

"As we started it off, we thought it was never going to fly but it certainly happened and the wine cellar idea obviously has a romanticism about it."

Mr Hugo says it took six months to dig out the cliff-side treasure trove.

"It was challenging from an engineering point that we had to mix the mining part with a conventional structural engineering part," he said.

The stairs and the underground cellar were built by a mining company. ( ABC )

Real estate agent Brian Watchorn says the owner did manage to get some use out of it first.

"No doubt he's had quite a few functions to entertain his friends and you can imagine the look on their faces when they come down to this extraordinary banquet area."

He says he could barely believe his own eyes when he first inspected the property.

"I've never seen anything like it and I've been doing real estate for 39 years," he said.

"This is really the most unique listing I've ever had."

The property comes with 21 acres of land, the vast cellar and enough whiskey to get you through even the coldest of Tasmanian winters.

But the boozy bunker is expected to set buyers back at least $3 million.