San Francisco’s most expensive home has traded for $21.8 million to Kyle Vogt, the 30-year-old co-founder of streaming platform Twitch and autonomous driving technology Cruise Automation, Business Insider reported. The deal is the largest of the year so far in San Francisco. The seven-bedroom home, a contemporary-style mansion on one of San Francisco’s most elevated streets, dates back to 1901 and was originally built for fish-packing mogul James Madison.