240 Alne Bank Lane, Rose Valley for sale with $5.5m asking price

A Rose Valley property features 256 acres of fertile pasture, bushwalking trails, waterfalls and pristine rainforest - as well as an interesting history.

Located in the hills of Rose Valley, 'Curry's Mountain Estate' is for sale, with a price guide of $5.5 million.

Current owners John and Annie McNamara bought the property, located at 240 Alne Bank Lane, seven years ago.

The estate is named after the family of John Curry, who had originally taken up settlement on the mountain circa the 1840s-1860s.

More recently it was owned by the late Stuart Hornery, a prominent Australian businessman and philanthropist who was chief executive of Lend Lease.

He enlisted renowned architect Eric R Kuhne to design a state-of-the-art home.

The plans were approved, and the house site has already undergone some preparation for the construction. This includes levelling of the house site, installation of underground power, water tanks and sewerage system, and excavation of rock for an in-ground pool.

In 2012, Mr Hornery, 73, died from cancer.

"He spent over half a million dollars just getting it to DA application stage... He spent an enormous amount of work and money on it before we bought the property," Mr McNamara said.

"Sadly he never fulfilled his dream.

"The infrastructure is all ready to go for the house, it's just a matter of building the house.

"It's (for) a $3.5 million home.

"The DA is still active, but we weren't in the position to spend the money to build that house, so we decided we'd get the place commercial first and then build a house."

On-site is the 'Shed,' which the current owners have converted to living quarters.

"We lived in the shed, which suited us," Mr McNamara said.

The property also features a working farm.

"When we bought the property it was classified as residential, but we've now introduced a native nursery, which is at 4000 plants now," Mr McNamara said.

"We've also planted 310 finger lime trees, which in the next 12-18 months will become commercial in terms of quantity."

Mr McNamara said he fell in love with the "magnificent" property at first sight.

He said he enjoyed the property's privacy and "views in all directions".

"It continues to surprise me," he said.

"And not just the views and the aspects, but all the beautiful forest... You feel when you come here that you've left all your worries behind.

"You can go there and you can be in the middle of nowhere, and yet you can still see Werri Beach, Gerroa Headland and the town of Gerringong.

"So you don't feel isolated, but you feel very private."

Mr McNamara said they were selling the property in order to spend more time with their children and grandchildren.

The selling agent is Carrie Bond from South Coast Prestige Properties.