As the San Francisco market experiences an AI-driven renaissance, a $24 million home with fortress-caliber construction is now one of the city’s priciest properties for sale.

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“Behind its discrete facade, [the home] is a fortress built of ‘Type 1,’ commercial grade steel,” listing agent Gregg Lynn of Sotheby’s International Realty – San Francisco Brokerage said in a statement.

“‘Type 1’ construction is one of the most important building categories because it’s specifically designed to withstand fire for long periods without collapsing—and that has major safety implications,” Lynn said. Though required to be used in high-rises, hospitals and commercial buildings, he explained, “it’s not used more widely in residential buildings because it’s substantially more expensive, heavier and requires more time to build.” 

With its hefty construction, the more than 8,900-square-foot home took more than five years to build and was completed in 2017, according to the agency. 

Its centerpiece is the kitchen and family room area, which boasts a Calacatta marble-wrapped waterfall island, a built-in coffee center, a wine chiller and direct access to the garden, which has a fireplace and dual waterfalls.

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There’s also an entrance gallery, a circular staircase, living and dining rooms, a walnut-clad elevator, a bespoke library, a home theater, and a limestone-and-walnut wine cellar designed to accommodate approximately 1,000 bottles. 

There’s also a multi-car garage with tufted walls, a vehicle lift and elevator access; au pair quarters with a private entrance; and a landscaped rooftop terrace with a fire pit and views of the skyline. 

The owner, an LLC, acquired the home in 2023 for $9.99 million, records with PropertyShark show. The seller in that transaction took a sizable loss, having purchased the home in 2020 for twice as much. 

“In 2023, as San Francisco was in its ‘Doom Loop’ with no market for selling a $20 million property, they sold it for $10 million,” Lynn said. 

But “the ‘Boom Loop’ has returned to San Francisco, designated the center of the burgeoning AI universe,” Lynn said. “In 2025, the city saw a 250% year-over-year increase in the sale of homes priced in the $15 million to $45 million range.” 

Just last month, property prices across the city hit new heights. 

House prices reached a record median sale price of $2.15 million in March, up 18% year over year. The new benchmark comes four years after the previous peak of $2.05 million was reached in April 2022 during the height of the pandemic, according to data from Compass. 

The median condo sale price was about $1.36 million, up 27% year over year and just shy of the record $1.375 million, which was also set in April 2022.