WARWICK was the birthplace of Queensland's wine industry and a piece of its history is ripe for the picking this weekend.

The state's oldest commercial winery Assmanshausen at Leslie will be auctioned on Saturday and has attracted potential buyers from across the state and New South Wales.

Bill and Sue Goddard are the 151-year-old home's fourth owners and have lived at Assmanshausen for 20 years.

"We came from Brisbane looking for a tree change and thought Assmanshausen was a splendid part of Warwick history and a real hidden gem," Mrs Goddard said.

"The minute you walk in the door you can understand why we fell in love with it."

Mr Goddard, a former mechanical engineer, said Assmanshausen reminded him of the landscape in Suffolk, England, where he grew up.

"I always wanted to be the proud owner of piece of rural Australia," Mr Goddard said.

The Goddards intend to downsize to a home in Warwick.

Assmanshausen hasn't operated as a commercial winery for decades but the original buildings and infrastructure are in good condition including the sandstone winery and 10,000 bottle cellar.

The winery was established by German immigrants Jacob and Elisabetha Kircher in 1865 and in the late 19th century, Assmanshausen's wines were winning awards across the globe.

The heritage-listed property has been immaculately maintained by former owners and restoration work over the years hasn't compromise its majestic tone and detail.

A recent addition to Assmanshausen is Hope Cottage Country Retreat, a fully appointed cottage popular with both domestic and international visitors.

The property is 45 acres and 10km from Warwick.

Southern Downs Realty's Brent Bowles said Assmanshausen has tourism potential such as a function centre or guest house. "Or someone could just move straight in and enjoy it as the stunning home and property that it is," Mr Bowles said.

The auction will start at 1pm, Saturday onsite at 24 Serisier Road, Leslie.