South of Market · Building 14 of 52 by AI share
AI tenants hold 57% of 650 Townsend Street by observed square feet
Scale AI holds 180,000 square feet on record. DataSF lists the building at 313,306. It is one of 15 San Francisco buildings that are at least half AI.
- AI share of building SF
- 57%
- AI square feet observed
- 180,000
- Building square feet (DataSF)
- 313,306
- AI tenants, October 2026
- 1
Tenants
AI tenants at 650 Townsend Street, October 2026
| Company | Tier | Recorded from | Observed SF | Type | Sources |
|---|---|---|---|---|---|
| Scale AI | AI infrastructure and tooling | July 2024 | 180,000 | Sublease | Link |
Source: DataSF business registrations and DBI permits, SEC filings, press. Observed square feet only. Building square feet from the DataSF property record. "Recorded from" is the date of the registration or the press report of a signing, not a move-in date. See the building on the map.
Deals
Leases and subleases reported here
- Scale AI took 180,000 square feet that Airbnb held (sublease, December 2024). Source
| Reported | Company | Type | SF | Source |
|---|---|---|---|---|
| December 2024 | Scale AI | Sublease | 180,000 | Link |
Nearby
Other measured buildings in South of Market
- 550 3rd Street: Cognition, 98% AI
- 808 Brannan Street: Physical Intelligence, 98% AI
- 850 Brannan Street: Physical Intelligence, 54% AI
- 475 Brannan Street: Recall.ai, 5% AI
Part of San Francisco AI tenants, a register of 223 AI companies at 271 locations built from public records. See all majority-AI buildings and the methodology.
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