Bloomberg Buys Southampton 'Ballyshear Estate' For $20 Million (PHOTOS)

07/20/2011 02:53 pm ET | Updated Sep 19, 2011

The New York Post reports today that Mayor Bloomberg is buying a Georgian mansion in Southampton, New York for $20 million (less than 1/100 of a percent of the mayor's net value).

The Ballyshear Estate, on a 35-acre spread in the Shinnecock Hills, was designed in 1913 by famed architect F. Burrall Hoffman Jr. for Charles Blair Macdonald, the man credited for building the first 18- hole golf course in the United States.

The 11 bedroom, 8.5 bathroom manse is nestled in gardens designed by none other than Central and Prospect Park mastermind Frederick Law Olmstead, and overlooks the Peconic Bay. At 22,000 square feet it features 'black and white marbled floors and stately paneled libraries', the Post reports.

And according to the listing, the property boasts a pool, a tennis court, horse-riding trails, stables and grazing areas (great for Bloomy's daughter Georgina, a prominent equestrian).

The estate is also a stone's throw away from the National Golf Links of America, one of the country's most exquisite courses. Hizzoner is an avid golfer.

Curbed noticed the Ballyshear hit the market back in April at $22.5 million.

The mayor also owns a condominium in Vail, Colorado, a bungalow in Bermuda and of course, a townhouse in the Upper East Side.

Below are some vintage photos of the estate from a 1930's brochure, courtesy of OldLongIsland.com who maintains the history of all the fading Gold Coast mansions. For more up-to-date pics, Gothamist has a good selection.

All photos courtesy of OldLongIsland.com: