Despite knocking more than US$40 million off its asking price, a California super mansion still holds the title of America’s most expensive residential property listing.

The 12-bedroom, 23-bathroom Palazzo di Amore in the Los Angeles suburb of Beverly Hills was placed on the market last year with an asking price of US$195 million, but after failing to sell the property this week had its price guide reduced by a whopping US$46 million.

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The current vendor bought the property in 2007 for US$35 million and in the following eight years has expanded it to now cover more than 4,900 square metres.

Whether any property is worth US$149 million, let alone US$195 million is debateable but the Palazzo di Amore makes a good case for why a potential buyer should dig deep into their pockets.

The mansion is set on 10 hectares and includes a living space that spans 3,200 square metres and an entertainment complex spanning another 1,700 square metres.

Besides the 12 bedrooms and 23 bathrooms, the property comes with a theatre that can seat 50 people, a 250-person dining area and a private bowling alley.

A 10,000 bottle wine cellar means guests will never be thirsty and they can even taste a local drop with the property including its own vineyard.

The grapevines don’t take up all of the space outside, with a tennis court, swimming pool and fountain all featuring among the landscaped surrounds.

There’s no need to worry about parking either, with the property featuring a 27-car garage and enough additional parking for another 150 cars.