Facebook founder Mark Zuckerberg and his wife Priscilla Chan have sold their San Francisco town house for $31 million. This is more than triple the amount they bought it for a decade ago.

Real estate newsagency The Real Deal was first to report the sale of the Meta CEO’s home—which is on 21st Street on Liberty Hill near Dolores Park. This website cited a grant deed filed with San Francisco on July 1 that was signed by the vice president of operations for the Chan Zuckerberg Initiative, an organisation named after the tech billionaire and his wife.

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It is reported that the $31 million sale is the largest residential deal in San Francisco so far this year. This deal also defeated two penthouses that formerly belonged to former US Secretary of State George Shultz for a combined $29 million last week. It is also said that this deal became the biggest condo sale in the city’s history.

According to the deed, the buyer of Zuckerberg’s property is an LLC that is based in Delaware.

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According to the Redfin real estate brokerage, Dolores Heights, the area south of Dolores Park, is an upmarket neighbourhood in San Francisco, and in June house prices in the area were up 14.6 percent compared to last year, selling for a median price of about $2.1 million.

The city has proved to be one of the most expensive in the world for property due to its close proximity to the affluent Silicon Valley.

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Zuckerberg reportedly purchased the 3450 21st Street home for around $10 million in November 2012 through SFRP LLC, a company linked to one of his homes in Palo Alto, where Facebook was originally headquartered. The company is now based in Menlo Park.

It is reportedly said that the 21st Street house was originally listed as a 7,200-square-foot, four-bedroom property but it was renovated.

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This upset neighbours due to the construction noise and because, as one person said, was Zuckerberg’s security detail hogging “desirable parking spots,” SFGate reported.

The renovation of the brick and stucco home reportedly cost an additional $1.8 million.