Elon Musk sells 16,000-square-foot mansion, his last remaining home in San Francisco area

Tesla and SpaceX CEO Elon Musk has reportedly found a buyer for his last remaining residential property, a historic estate in Hillsborough, California. The property, listed for nearly $32 million, went under contract over the weekend, as noted by the Multiple Listing Service. The final sale price and the buyer’s identity remain undisclosed, pending the transaction’s completion.

According to The New York Post, the 16,000-square-foot mansion, which is one of the largest parcels in Silicon Valley, was first put on the market by Musk in June after he announced on Twitter that he intended to sell his last remaining house. Musk tweeted that the estate should go to “a large family who will live there.” Initially listed for $37.5 million, the price was reduced by $5.5 million in October to $31.99 million, according to Mansion Global.


Known as Guignécourt, the mansion sits on 47 acres and offers views of the San Francisco Bay and city skyline. The estate, built in 1912 by French nobleman Count Christian de Guigné, features seven bedrooms and nine and a half bathrooms. The listing describes grand living spaces, including a living room, a library with leather walls and a fireplace, a gourmet kitchen, and dining and music rooms that can be combined for entertaining.
Significant technological upgrades have been made to the 100-year-old home. As listed by agents Mary and Brent Gullixson of Compass, the property includes “fiber optic cable under the driveway, a high-end security system, an interior sound system, and restoration to several of-the-era features.” The agents declined to comment on the pending sale, as reported by Mansion Global.
The estate also boasts extensive landscaped grounds with a reservoir, a pool and pavilion, hiking trails, a three-car garage, and an eight-car carport. Musk purchased Guignécourt in 2017 for $23.4 million through Gatsby LLC, linked to Excession, an entity associated with his family office. The property had once been listed for $100 million before Musk’s purchase, according to Mansion Global.
Musk has been divesting his real estate holdings in recent years to focus on what he describes as a “multiplanetary” life. Representatives for Musk did not immediately respond to requests for comment.