Anthropic doubles down in SF
What happened
Anthropic signed a lease for roughly 100,000 square feet at 400 Howard Street, expanding its San Francisco office footprint and signalling the city remains a hub for top AI firms. The move was reported as part of a broader pattern where downtown talent hubs pair with peripheral lab space for hardware and robotics work. (nationaltoday.com)
Why it matters
Anthropic has signed for roughly 100,000 square feet at 400 Howard Street, taking three full floors in Foundry Square I — a roughly 370,000-square-foot office tower owned by the State Teachers Retirement System of Ohio. (The Real Deal) That block sits directly across Howard Street from 300 Howard, which Anthropic agreed to occupy in its entirety earlier this year, and it joins existing commitments nearby at 500 Howard (a large sublease from Slack) and 505 Howard. (CRE MarketBeat) Company spokespeople and local real‑estate coverage describe the deal as part of a multi‑building plan that provides “swing space” — temporary office capacity to house teams while a longer‑term headquarters is prepared — enabling the company to stage hiring and fit‑out work within the same micro‑neighborhood. (CRE MarketBeat) The landlord group for 300 Howard confirmed that building is about 466,000 square feet and that Anthropic’s commitment there was one of the city’s largest single‑tenant deals; Anthropic’s leadership has said the company already has more than 1,300 employees in the Bay Area. (Business Wire / DivcoWest & Blackstone press release / The Real Deal) Timing details in reporting say Anthropic will activate portions of 400 Howard for employees this summer in phases, and then phase its move into 300 Howard next year (the reporting cites 2027 for the larger headquarters transition); the leases Anthropic holds at 500 and 505 Howard are expected to run through 2028, which helps explain the need for staged occupancy. (The Real Deal / (sfgate.com))
Key numbers
- Anthropic signed a lease for roughly 100,000 square feet at 400 Howard Street, expanding its San Francisco office footprint and signalling the city remains a hub for top AI firms.
- (nationaltoday.com) Anthropic has signed for roughly 100,000 square feet at 400 Howard Street, taking three full floors in Foundry Square I — a roughly 370,000-square-foot office tower owned by the State Teachers Retirement System of Ohio.
- (The Real Deal) That block sits directly across Howard Street from 300 Howard, which Anthropic agreed to occupy in its entirety earlier this year, and it joins existing commitments nearby at 500 Howard (a large sublease from Slack) and 505 Howard.
Quick answers
What happened in Anthropic doubles down in SF?
Anthropic signed a lease for roughly 100,000 square feet at 400 Howard Street, expanding its San Francisco office footprint and signalling the city remains a hub for top AI firms. The move was reported as part of a broader pattern where downtown talent hubs pair with peripheral lab space for hardware and robotics work. (nationaltoday.com)
Why does Anthropic doubles down in SF matter?
Anthropic has signed for roughly 100,000 square feet at 400 Howard Street, taking three full floors in Foundry Square I — a roughly 370,000-square-foot office tower owned by the State Teachers Retirement System of Ohio. (The Real Deal) That block sits directly across Howard Street from 300 Howard, which Anthropic agreed to occupy in its entirety earlier this year, and it joins existing commitments nearby at 500 Howard (a large sublease from Slack) and 505 Howard. (CRE MarketBeat) Company spokespeople and local real‑estate coverage describe the deal as part of a multi‑building plan that provides “swing space” — temporary office capacity to house teams while a longer‑term headquarters is prepared — enabling the company to stage hiring and fit‑out work within the same micro‑neighborhood. (CRE MarketBeat) The landlord group for 300 Howard confirmed that building is about 466,000 square feet and that Anthropic’s commitment there was one of the city’s largest single‑tenant deals; Anthropic’s leadership has said the company already has more than 1,300 employees in the Bay Area. (Business Wire / DivcoWest & Blackstone press release / The Real Deal) Timing details in reporting say Anthropic will activate portions of 400 Howard for employees this summer in phases, and then phase its move into 300 Howard next year (the reporting cites 2027 for the larger headquarters transition); the leases Anthropic holds at 500 and 505 Howard are expected to run through 2028, which helps explain the need for staged occupancy. (The Real Deal / (sfgate.com))
