Updated Apr 9, 2026
Dario Amodei Of Anthropic Leases 70,000 Square Feet At 405 Howard Street In San Francisco
405 Howard Street
Building Size
70,000 SF
Asset Type
Office
Closing
Apr 7, 2026
About this deal
AI
The property asset is an office space located at 405 Howard Street in San Francisco, comprising 70,000 square feet. This leasing transaction involves Anthropic as the tenant, which is expanding its operations within the Foundry Square complex.
Summary of transaction details:
- Property Type: Office
- Transaction Amount: Not specified
- Address: 405 Howard Street
- Market: San Francisco
- Tenant: Dario Amodei - Anthropic
- Lease Size: 70,000 square feet
This lease deal reflects Anthropic's strategic initiative to consolidate operations at its future headquarters located at 300 Howard Street. Following this transaction, Anthropic's total presence in the area reaches approximately 1 million square feet, including recent leases at 300, 342, 400, and 500 Howard Street, highlighting the company's growth within the San Francisco office market.
On the Map
Office
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San Francisco Office Market Snapshot
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Purchase Price
Annual NOI
Loan Amount
Interest Rate (%)
Loan Term (yrs)
Down Payment (%)
Cap Rate
5.80%
Cash-on-Cash
-1.66%
Monthly Payment
$14,164
Annual Debt Svc
$169,964
Annual Cash Flow
$-11,334
DSCR
0.93