This was a huge year for high-end real estate.
From celebrity-owned estates in Los Angeles to sky-high mansions in Manhattan, here are the most expensive homes sold in the US in 2014.
20. Tom Brady and Gisele Bundchen sold their $40 million mansion in Brentwood, California, to Dr. Dre.
19. Billionaire philanthropist Jon Stryker sold his Upper West Side duplex penthouse for $42 million.
17. A mansion nestled in the Holmby Hills neighbourhood of Los Angeles went for $44 million to an unnamed Saudi buyer.
According to The Hollywood Reporter, the mansion has 30,000 square feet, eight bedrooms and 19 baths, a bowling alley, indoor and outdoor pools, and even dental offices in the basement.
It's located in one of the most prestigious zip codes in LA, and is just steps from the Playboy Mansion and other sights.
According to CityRealty's year-end market report, the condo has a total of 5,610 square feet. The new owner shares the building with other famous faces, such as Bob Costas, Denzel Washington, and even Sting.
It's unclear who bought the spread.
Billionaire music producer and film studio exec David Geffen bought an East Hampton compound nestled between the beach and Georgica Pond for around $US50 million, significantly less than its $US75 million asking price.
The waterfront compound includes four separate lots: one for the 7,500-square-foot house, one for a guest house, and two additional vacant lots. It was previously owned by socialite and philanthropist Courtney Sales Ross, wife of the late head of Time Warner, Steven J. Ross.
The penthouse at the Chelsea building has floor-to-ceiling windows on every wall, with views of the Statue of Liberty on one side and the Chrysler building on the other.
It reportedly only took the unnamed buyer five minutes in the penthouse before saying 'I'll take it.'
The 80th-floor condo has been under contract since March 2013 before closing for $US52.95 million. The four-bedroom space sold for $US1.55 million under the asking price to Lapusny Inc.
One57 is NYC's most buzzed-about building; it towers 1,000 feet over Central Park, making it the tallest building in Manhattan (excluding) One World Trade Center's spire).
According to The Real Deal, Rebecca Moores' One57 condo, on the 81st floor, has four bedrooms, five and a half baths, and a huge 75-foot-long entrance gallery with a sitting room.
It also features sweeping views of Central Park on the north side of the full-floor apartment.
Silas Chou, the co-chairman of Michael Kors Inc., is now the owner of the 82nd floor of One57's Midtown condo complex.
The unit had been under contract since February 2012 before closing this October.
Billionaire media mogul Rupert Murdoch bought the penthouse triplex and the apartment on the floor below, taking over the 57th through 60th floors of One Madison.
The lavish apartment has a near-600-square-foot wraparound terrace with panoramic views of the NYC skyline.
The condo, which is actually the penthouse at the top of the 18-story Faena House, has 8,000 square feet of living space as well as a 7,000 square feet 'alero' -- a fancy Brazilian-style sweeping terrace -- complete with a 70-foot rooftop infinity pool.
It was listed for $US50 million and sold for $US10 million over the asking price, according to Curbed.
The Fifth Avenue co-op has a wraparound terrace with views of Central Park, 16 rooms, and guest quarters. It previously belonged to the late Edgar Bronfman Sr., who was chairman of the Seagram Co.
A real estate source told the New York Post that the new owner is likely to completely remodel the space due to its outdated decor.
The second most expensive NYC co-op ever sold went for $US71.3 million. It was bought by hedge-fund mogul Englander, who already owned an apartment at the prestigious building, 740 Park Ave.
The billionaire purchased the apartment from the country of France for a whopping $US23 million over the asking price following a three-way bidding war.
A 'highly secretive French billionaire' won a three-way betting war and closed in 10 days in an all-cash deal that included the home's antique furnishings.
The 50,000-square-foot home has a ballroom, 15 bathrooms, and is equipped to host parties of 500 people.
Previously the most expensive home for sale in the US, Connecticut estate Copper Beech Farm sits on 50 acres, has 4,000 feet of waterfront along the Long Island Sound, and two private islands.
The property was originally listed at $US190 million before taking a $US70 million price cut.
Hedge fund manager Barry Rosenstein of Jana Partners bought the record-breaking 18-acre property in April -- the most expensive home ever sold in the US.
Rosenstein is now neighbours with Jerry Seinfeld, hedge fund manager Jim Chanos, and art dealer Larry Gagosian. Much to local brokers' dismay, the property was sold privately by the late owner Christopher H. Browne's family.
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