The 23-acre farm in Montecito, Santa Barbara, comes complete with all the facilities you'd expect of a deluxe equestrian ranch -- covered stalls, spacious pens, paddocks, riding and exercise areas.
However the $28.8 million property, which has views of both the Pacific Ocean and Santa Ynez Mountains, does not appear to come with any actual horses.
So just what does the 62-year-old Winfrey
-- the famous talk show host, Oscar-nominated actress, and entertainment entrepreneur worth an estimated $3 billion
-- have in mind for this luxurious ranch?
Marty Rogers, of Sage Auctions
which managed the sale, said the queen of daytime TV had personally visited the site numerous times before making her winning auction bid.
"Obviously, she is a very smart buyer and does have an amazing vision for this property," Rogers said.
"She had a number of experts inspect different aspects of the property and paid extensive due diligence to the property package we provided."
The main house was designed by architect Cliff May, whose signature "California Ranch House" usually featured a long, low roof.
Spread over 5,000 square feet, the house boasts four bedrooms, four fireplaces, and overlooks a pool.
Historic horse ranch
This is the first time in almost four decades that Seamair Farm
has gone on the market. Previous owners John Charles Pritzlaff Jr. and Mary Dell Olin Pritzlaff, of the American chemical giant Olin Corporation
, bought the property in 1977.
Mary Dell raised and trained champion hackney ponies on the farm, and oversaw the renovation of equestrian facilities. She died in July last year, aged 85, reportedly at her home in Santa Barbara.
Meanwhile, husband John Charles, a former U.S. ambassador to Malta -- with "encyclopedic gardening knowledge and skills," according to Rogers -- was responsible for the property's thriving fruit orchards.
A large avocado grove is also sure to appeal to Winfrey's green thumb.
President of media and entertainment company Harpo Productions, Winfrey declined to comment when contacted by CNN.