Slack CEO Sells Presidio Heights Home for $19.2 Million

Slack CEO Stewart Butterfield and his wife, Away CEO Jen Rubio, have sold their 8,000-square-foot Presidio Heights Victorian for just under $19.2 million, or about $2,400 per square foot, according to property tax records.

The billionaire tech and travel power couple listed 3636 Clay Street for $19.8 million on Sept. 13 with Sotheby’s International Realty agent Neil Bassi. They decided to sell the seven-bedroom turn-of-the-century home they bought in 2019 for $19 million because they have relocated to Colorado, a Sotheby’s spokesperson told the Wall Street Journal when the home first came to market.

In addition to the Aspen home they bought for $25 million in January 2021, they also own a $32 million estate in the Hamptons and a $20 million Tribeca townhouse with a skybridge they plan to use for offices and event space for their foundation, according to the Journal.

Bassi did not return a request for comment on the sale but the home had at least three offers, according to an industry source. The listing was removed on Oct. 6 because it went into contract, a move Bassi often employs to offer extra privacy for his clients, the source said.

The home sold on Oct. 14 and the quick close strongly indicates an all-cash deal. The buyer is an LLC called Clay Street Holdings, which lists its address as 235 Montgomery Street, a downtown office building owned by Shorenstein Properties and popular with law firms.

The close is one of the biggest in San Francisco this year, with a slow fall season for the ultra-luxury segment following a spate of high-profile sales in the $30 million range during the summer. To date, 3636 Clay ranks as the fourth-biggest SF residential sale of 2022, after the $34.5 million sale of a Gold Coast fixer to the owners of the Tampa Bay Buccaneers; Mark Zuckerberg’s $31 million sale in Mission Dolores; and the two Russian Hill penthouses of former secretary of state George Shultz, which went for a combined $29 million to a single buyer.