Although he wouldn't release the sale price, seller Mohamed Hadid confirmed that it was in excess of the previous record of more than $46.5 million set this spring in Colorado, falling between $50 million and the asking price of $72 million. In Los Angeles County, sale prices can take more than a month to appear on the public record.

Designer-developer Hadid had listed the walled and gated estate 15 months ago at $85 million.

The 48,000-square-foot estate, called Le Belvedere, was bought in the name of a limited liability company, not an individual. "Even I don't know who bought it," said Hadid, who has built Ritz-Carlton hotels, office buildings and king-size estates nationwide during his 30-year-plus career.

Click here to view all past articles in Market Intelligence